| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| RustFS is a distributed object storage system built in Rust. In versions prior to 1.0.0-alpha.77, RustFS implements gRPC authentication using a hardcoded static token `"rustfs rpc"` that is publicly exposed in the source code repository, hardcoded on both client and server sides, non-configurable with no mechanism for token rotation, and universally valid across all RustFS deployments. Any attacker with network access to the gRPC port can authenticate using this publicly known token and execute privileged operations including data destruction, policy manipulation, and cluster configuration changes. Version 1.0.0-alpha.77 contains a fix for the issue. |
| ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-12, using Magick to read a malicious SVG file resulted in a DoS attack. Version 7.1.2-12 fixes the issue. |
| A CSV Formula Injection vulnerability in TrueConf Server v5.5.2.10813 allows a normal user to inject malicious spreadsheet formulas into exported chat logs via crafted Display Name. |
| In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: TC, Fix using eswitch mapping in nic mode
Cited patch is using the eswitch object mapping pool while
in nic mode where it isn't initialized. This results in the
trace below [0].
Fix that by using either nic or eswitch object mapping pool
depending if eswitch is enabled or not.
[0]:
[ 826.446057] ==================================================================
[ 826.446729] BUG: KASAN: slab-use-after-free in mlx5_add_flow_rules+0x30/0x490 [mlx5_core]
[ 826.447515] Read of size 8 at addr ffff888194485830 by task tc/6233
[ 826.448243] CPU: 16 PID: 6233 Comm: tc Tainted: G W 6.3.0-rc6+ #1
[ 826.448890] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 826.449785] Call Trace:
[ 826.450052] <TASK>
[ 826.450302] dump_stack_lvl+0x33/0x50
[ 826.450650] print_report+0xc2/0x610
[ 826.450998] ? __virt_addr_valid+0xb1/0x130
[ 826.451385] ? mlx5_add_flow_rules+0x30/0x490 [mlx5_core]
[ 826.451935] kasan_report+0xae/0xe0
[ 826.452276] ? mlx5_add_flow_rules+0x30/0x490 [mlx5_core]
[ 826.452829] mlx5_add_flow_rules+0x30/0x490 [mlx5_core]
[ 826.453368] ? __kmalloc_node+0x5a/0x120
[ 826.453733] esw_add_restore_rule+0x20f/0x270 [mlx5_core]
[ 826.454288] ? mlx5_eswitch_add_send_to_vport_meta_rule+0x260/0x260 [mlx5_core]
[ 826.455011] ? mutex_unlock+0x80/0xd0
[ 826.455361] ? __mutex_unlock_slowpath.constprop.0+0x210/0x210
[ 826.455862] ? mapping_add+0x2cb/0x440 [mlx5_core]
[ 826.456425] mlx5e_tc_action_miss_mapping_get+0x139/0x180 [mlx5_core]
[ 826.457058] ? mlx5e_tc_update_skb_nic+0xb0/0xb0 [mlx5_core]
[ 826.457636] ? __kasan_kmalloc+0x77/0x90
[ 826.458000] ? __kmalloc+0x57/0x120
[ 826.458336] mlx5_tc_ct_flow_offload+0x325/0xe40 [mlx5_core]
[ 826.458916] ? ct_kernel_enter.constprop.0+0x48/0xa0
[ 826.459360] ? mlx5_tc_ct_parse_action+0xf0/0xf0 [mlx5_core]
[ 826.459933] ? mlx5e_mod_hdr_attach+0x491/0x520 [mlx5_core]
[ 826.460507] ? mlx5e_mod_hdr_get+0x12/0x20 [mlx5_core]
[ 826.461046] ? mlx5e_tc_attach_mod_hdr+0x154/0x170 [mlx5_core]
[ 826.461635] mlx5e_configure_flower+0x969/0x2110 [mlx5_core]
[ 826.462217] ? _raw_spin_lock_bh+0x85/0xe0
[ 826.462597] ? __mlx5e_add_fdb_flow+0x750/0x750 [mlx5_core]
[ 826.463163] ? kasan_save_stack+0x2e/0x40
[ 826.463534] ? down_read+0x115/0x1b0
[ 826.463878] ? down_write_killable+0x110/0x110
[ 826.464288] ? tc_setup_action.part.0+0x9f/0x3b0
[ 826.464701] ? mlx5e_is_uplink_rep+0x4c/0x90 [mlx5_core]
[ 826.465253] ? mlx5e_tc_reoffload_flows_work+0x130/0x130 [mlx5_core]
[ 826.465878] tc_setup_cb_add+0x112/0x250
[ 826.466247] fl_hw_replace_filter+0x230/0x310 [cls_flower]
[ 826.466724] ? fl_hw_destroy_filter+0x1a0/0x1a0 [cls_flower]
[ 826.467212] fl_change+0x14e1/0x2030 [cls_flower]
[ 826.467636] ? sock_def_readable+0x89/0x120
[ 826.468019] ? fl_tmplt_create+0x2d0/0x2d0 [cls_flower]
[ 826.468509] ? kasan_unpoison+0x23/0x50
[ 826.468873] ? get_random_u16+0x180/0x180
[ 826.469244] ? __radix_tree_lookup+0x2b/0x130
[ 826.469640] ? fl_get+0x7b/0x140 [cls_flower]
[ 826.470042] ? fl_mask_put+0x200/0x200 [cls_flower]
[ 826.470478] ? __mutex_unlock_slowpath.constprop.0+0x210/0x210
[ 826.470973] ? fl_tmplt_create+0x2d0/0x2d0 [cls_flower]
[ 826.471427] tc_new_tfilter+0x644/0x1050
[ 826.471795] ? tc_get_tfilter+0x860/0x860
[ 826.472170] ? __thaw_task+0x130/0x130
[ 826.472525] ? arch_stack_walk+0x98/0xf0
[ 826.472892] ? cap_capable+0x9f/0xd0
[ 826.473235] ? security_capable+0x47/0x60
[ 826.473608] rtnetlink_rcv_msg+0x1d5/0x550
[ 826.473985] ? rtnl_calcit.isra.0+0x1f0/0x1f0
[ 826.474383] ? __stack_depot_save+0x35/0x4c0
[ 826.474779] ? kasan_save_stack+0x2e/0x40
[ 826.475149] ? kasan_save_stack+0x1e/0x40
[ 826.475518] ? __kasan_record_aux_stack+0x9f/0xb0
[ 826.475939] ? task_work_add+0x77/0x1c0
[ 826.476305] netlink_rcv_skb+0xe0/0x210
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: xsk: Fix invalid buffer access for legacy rq
The below crash can be encountered when using xdpsock in rx mode for
legacy rq: the buffer gets released in the XDP_REDIRECT path, and then
once again in the driver. This fix sets the flag to avoid releasing on
the driver side.
XSK handling of buffers for legacy rq was relying on the caller to set
the skip release flag. But the referenced fix started using fragment
counts for pages instead of the skip flag.
Crash log:
general protection fault, probably for non-canonical address 0xffff8881217e3a: 0000 [#1] SMP
CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted 6.5.0-rc1+ #31
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:bpf_prog_03b13f331978c78c+0xf/0x28
Code: ...
RSP: 0018:ffff88810082fc98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888138404901 RCX: c0ffffc900027cbc
RDX: ffffffffa000b514 RSI: 00ffff8881217e32 RDI: ffff888138404901
RBP: ffff88810082fc98 R08: 0000000000091100 R09: 0000000000000006
R10: 0000000000000800 R11: 0000000000000800 R12: ffffc9000027a000
R13: ffff8881217e2dc0 R14: ffff8881217e2910 R15: ffff8881217e2f00
FS: 0000000000000000(0000) GS:ffff88852c800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564cb2e2cde0 CR3: 000000010e603004 CR4: 0000000000370eb0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? die_addr+0x32/0x80
? exc_general_protection+0x192/0x390
? asm_exc_general_protection+0x22/0x30
? 0xffffffffa000b514
? bpf_prog_03b13f331978c78c+0xf/0x28
mlx5e_xdp_handle+0x48/0x670 [mlx5_core]
? dev_gro_receive+0x3b5/0x6e0
mlx5e_xsk_skb_from_cqe_linear+0x6e/0x90 [mlx5_core]
mlx5e_handle_rx_cqe+0x55/0x100 [mlx5_core]
mlx5e_poll_rx_cq+0x87/0x6e0 [mlx5_core]
mlx5e_napi_poll+0x45e/0x6b0 [mlx5_core]
__napi_poll+0x25/0x1a0
net_rx_action+0x28a/0x300
__do_softirq+0xcd/0x279
? sort_range+0x20/0x20
run_ksoftirqd+0x1a/0x20
smpboot_thread_fn+0xa2/0x130
kthread+0xc9/0xf0
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x1f/0x30
</TASK>
Modules linked in: mlx5_ib mlx5_core rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi ib_umad rdma_cm ib_ipoib iw_cm ib_cm ib_uverbs ib_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter overlay zram zsmalloc fuse [last unloaded: mlx5_core]
---[ end trace 0000000000000000 ]--- |
| In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix lockdep splat and potential deadlock after failure running delayed items
When running delayed items we are holding a delayed node's mutex and then
we will attempt to modify a subvolume btree to insert/update/delete the
delayed items. However if have an error during the insertions for example,
btrfs_insert_delayed_items() may return with a path that has locked extent
buffers (a leaf at the very least), and then we attempt to release the
delayed node at __btrfs_run_delayed_items(), which requires taking the
delayed node's mutex, causing an ABBA type of deadlock. This was reported
by syzbot and the lockdep splat is the following:
WARNING: possible circular locking dependency detected
6.5.0-rc7-syzkaller-00024-g93f5de5f648d #0 Not tainted
------------------------------------------------------
syz-executor.2/13257 is trying to acquire lock:
ffff88801835c0c0 (&delayed_node->mutex){+.+.}-{3:3}, at: __btrfs_release_delayed_node+0x9a/0xaa0 fs/btrfs/delayed-inode.c:256
but task is already holding lock:
ffff88802a5ab8e8 (btrfs-tree-00){++++}-{3:3}, at: __btrfs_tree_lock+0x3c/0x2a0 fs/btrfs/locking.c:198
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (btrfs-tree-00){++++}-{3:3}:
__lock_release kernel/locking/lockdep.c:5475 [inline]
lock_release+0x36f/0x9d0 kernel/locking/lockdep.c:5781
up_write+0x79/0x580 kernel/locking/rwsem.c:1625
btrfs_tree_unlock_rw fs/btrfs/locking.h:189 [inline]
btrfs_unlock_up_safe+0x179/0x3b0 fs/btrfs/locking.c:239
search_leaf fs/btrfs/ctree.c:1986 [inline]
btrfs_search_slot+0x2511/0x2f80 fs/btrfs/ctree.c:2230
btrfs_insert_empty_items+0x9c/0x180 fs/btrfs/ctree.c:4376
btrfs_insert_delayed_item fs/btrfs/delayed-inode.c:746 [inline]
btrfs_insert_delayed_items fs/btrfs/delayed-inode.c:824 [inline]
__btrfs_commit_inode_delayed_items+0xd24/0x2410 fs/btrfs/delayed-inode.c:1111
__btrfs_run_delayed_items+0x1db/0x430 fs/btrfs/delayed-inode.c:1153
flush_space+0x269/0xe70 fs/btrfs/space-info.c:723
btrfs_async_reclaim_metadata_space+0x106/0x350 fs/btrfs/space-info.c:1078
process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
-> #0 (&delayed_node->mutex){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3142 [inline]
check_prevs_add kernel/locking/lockdep.c:3261 [inline]
validate_chain kernel/locking/lockdep.c:3876 [inline]
__lock_acquire+0x39ff/0x7f70 kernel/locking/lockdep.c:5144
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761
__mutex_lock_common+0x1d8/0x2530 kernel/locking/mutex.c:603
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
__btrfs_release_delayed_node+0x9a/0xaa0 fs/btrfs/delayed-inode.c:256
btrfs_release_delayed_node fs/btrfs/delayed-inode.c:281 [inline]
__btrfs_run_delayed_items+0x2b5/0x430 fs/btrfs/delayed-inode.c:1156
btrfs_commit_transaction+0x859/0x2ff0 fs/btrfs/transaction.c:2276
btrfs_sync_file+0xf56/0x1330 fs/btrfs/file.c:1988
vfs_fsync_range fs/sync.c:188 [inline]
vfs_fsync fs/sync.c:202 [inline]
do_fsync fs/sync.c:212 [inline]
__do_sys_fsync fs/sync.c:220 [inline]
__se_sys_fsync fs/sync.c:218 [inline]
__x64_sys_fsync+0x196/0x1e0 fs/sync.c:218
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
other info that
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()
rule_locs is allocated in ethtool_get_rxnfc and the size is determined by
rule_cnt from user space. So rule_cnt needs to be check before using
rule_locs to avoid NULL pointer dereference. |
| In the Linux kernel, the following vulnerability has been resolved:
block, bfq: Fix division by zero error on zero wsum
When the weighted sum is zero the calculation of limit causes
a division by zero error. Fix this by continuing to the next level.
This was discovered by running as root:
stress-ng --ioprio 0
Fixes divison by error oops:
[ 521.450556] divide error: 0000 [#1] SMP NOPTI
[ 521.450766] CPU: 2 PID: 2684464 Comm: stress-ng-iopri Not tainted 6.2.1-1280.native #1
[ 521.451117] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014
[ 521.451627] RIP: 0010:bfqq_request_over_limit+0x207/0x400
[ 521.451875] Code: 01 48 8d 0c c8 74 0b 48 8b 82 98 00 00 00 48 8d 0c c8 8b 85 34 ff ff ff 48 89 ca 41 0f af 41 50 48 d1 ea 48 98 48 01 d0 31 d2 <48> f7 f1 41 39 41 48 89 85 34 ff ff ff 0f 8c 7b 01 00 00 49 8b 44
[ 521.452699] RSP: 0018:ffffb1af84eb3948 EFLAGS: 00010046
[ 521.452938] RAX: 000000000000003c RBX: 0000000000000000 RCX: 0000000000000000
[ 521.453262] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb1af84eb3978
[ 521.453584] RBP: ffffb1af84eb3a30 R08: 0000000000000001 R09: ffff8f88ab8a4ba0
[ 521.453905] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8f88ab8a4b18
[ 521.454224] R13: ffff8f8699093000 R14: 0000000000000001 R15: ffffb1af84eb3970
[ 521.454549] FS: 00005640b6b0b580(0000) GS:ffff8f88b3880000(0000) knlGS:0000000000000000
[ 521.454912] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 521.455170] CR2: 00007ffcbcae4e38 CR3: 00000002e46de001 CR4: 0000000000770ee0
[ 521.455491] PKRU: 55555554
[ 521.455619] Call Trace:
[ 521.455736] <TASK>
[ 521.455837] ? bfq_request_merge+0x3a/0xc0
[ 521.456027] ? elv_merge+0x115/0x140
[ 521.456191] bfq_limit_depth+0xc8/0x240
[ 521.456366] __blk_mq_alloc_requests+0x21a/0x2c0
[ 521.456577] blk_mq_submit_bio+0x23c/0x6c0
[ 521.456766] __submit_bio+0xb8/0x140
[ 521.457236] submit_bio_noacct_nocheck+0x212/0x300
[ 521.457748] submit_bio_noacct+0x1a6/0x580
[ 521.458220] submit_bio+0x43/0x80
[ 521.458660] ext4_io_submit+0x23/0x80
[ 521.459116] ext4_do_writepages+0x40a/0xd00
[ 521.459596] ext4_writepages+0x65/0x100
[ 521.460050] do_writepages+0xb7/0x1c0
[ 521.460492] __filemap_fdatawrite_range+0xa6/0x100
[ 521.460979] file_write_and_wait_range+0xbf/0x140
[ 521.461452] ext4_sync_file+0x105/0x340
[ 521.461882] __x64_sys_fsync+0x67/0x100
[ 521.462305] ? syscall_exit_to_user_mode+0x2c/0x1c0
[ 521.462768] do_syscall_64+0x3b/0xc0
[ 521.463165] entry_SYSCALL_64_after_hwframe+0x5a/0xc4
[ 521.463621] RIP: 0033:0x5640b6c56590
[ 521.464006] Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 80 3d 71 70 0e 00 00 74 17 b8 4a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c |
| In the Linux kernel, the following vulnerability has been resolved:
net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX.
syzkaller found zero division error [0] in div_s64_rem() called from
get_cycle_time_elapsed(), where sched->cycle_time is the divisor.
We have tests in parse_taprio_schedule() so that cycle_time will never
be 0, and actually cycle_time is not 0 in get_cycle_time_elapsed().
The problem is that the types of divisor are different; cycle_time is
s64, but the argument of div_s64_rem() is s32.
syzkaller fed this input and 0x100000000 is cast to s32 to be 0.
@TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME={0xc, 0x8, 0x100000000}
We use s64 for cycle_time to cast it to ktime_t, so let's keep it and
set max for cycle_time.
While at it, we prevent overflow in setup_txtime() and add another
test in parse_taprio_schedule() to check if cycle_time overflows.
Also, we add a new tdc test case for this issue.
[0]:
divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 103 Comm: kworker/1:3 Not tainted 6.5.0-rc1-00330-g60cc1f7d0605 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:div_s64_rem include/linux/math64.h:42 [inline]
RIP: 0010:get_cycle_time_elapsed net/sched/sch_taprio.c:223 [inline]
RIP: 0010:find_entry_to_transmit+0x252/0x7e0 net/sched/sch_taprio.c:344
Code: 3c 02 00 0f 85 5e 05 00 00 48 8b 4c 24 08 4d 8b bd 40 01 00 00 48 8b 7c 24 48 48 89 c8 4c 29 f8 48 63 f7 48 99 48 89 74 24 70 <48> f7 fe 48 29 d1 48 8d 04 0f 49 89 cc 48 89 44 24 20 49 8d 85 10
RSP: 0018:ffffc90000acf260 EFLAGS: 00010206
RAX: 177450e0347560cf RBX: 0000000000000000 RCX: 177450e0347560cf
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000100000000
RBP: 0000000000000056 R08: 0000000000000000 R09: ffffed10020a0934
R10: ffff8880105049a7 R11: ffff88806cf3a520 R12: ffff888010504800
R13: ffff88800c00d800 R14: ffff8880105049a0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0edf84f0e8 CR3: 000000000d73c002 CR4: 0000000000770ee0
PKRU: 55555554
Call Trace:
<TASK>
get_packet_txtime net/sched/sch_taprio.c:508 [inline]
taprio_enqueue_one+0x900/0xff0 net/sched/sch_taprio.c:577
taprio_enqueue+0x378/0xae0 net/sched/sch_taprio.c:658
dev_qdisc_enqueue+0x46/0x170 net/core/dev.c:3732
__dev_xmit_skb net/core/dev.c:3821 [inline]
__dev_queue_xmit+0x1b2f/0x3000 net/core/dev.c:4169
dev_queue_xmit include/linux/netdevice.h:3088 [inline]
neigh_resolve_output net/core/neighbour.c:1552 [inline]
neigh_resolve_output+0x4a7/0x780 net/core/neighbour.c:1532
neigh_output include/net/neighbour.h:544 [inline]
ip6_finish_output2+0x924/0x17d0 net/ipv6/ip6_output.c:135
__ip6_finish_output+0x620/0xaa0 net/ipv6/ip6_output.c:196
ip6_finish_output net/ipv6/ip6_output.c:207 [inline]
NF_HOOK_COND include/linux/netfilter.h:292 [inline]
ip6_output+0x206/0x410 net/ipv6/ip6_output.c:228
dst_output include/net/dst.h:458 [inline]
NF_HOOK.constprop.0+0xea/0x260 include/linux/netfilter.h:303
ndisc_send_skb+0x872/0xe80 net/ipv6/ndisc.c:508
ndisc_send_ns+0xb5/0x130 net/ipv6/ndisc.c:666
addrconf_dad_work+0xc14/0x13f0 net/ipv6/addrconf.c:4175
process_one_work+0x92c/0x13a0 kernel/workqueue.c:2597
worker_thread+0x60f/0x1240 kernel/workqueue.c:2748
kthread+0x2fe/0x3f0 kernel/kthread.c:389
ret_from_fork+0x2c/0x50 arch/x86/entry/entry_64.S:308
</TASK>
Modules linked in: |
| In the Linux kernel, the following vulnerability has been resolved:
drm/ttm: Don't leak a resource on eviction error
On eviction errors other than -EMULTIHOP we were leaking a resource.
Fix.
v2:
- Avoid yet another goto (Andi Shyti) |
| In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer()
'read' is freed when it is known to be NULL, but not when a read error
occurs.
Revert the logic to avoid a small leak, should a m920x_read() call fail. |
| In the Linux kernel, the following vulnerability has been resolved:
media: usb: siano: Fix use after free bugs caused by do_submit_urb
There are UAF bugs caused by do_submit_urb(). One of the KASan reports
is shown below:
[ 36.403605] BUG: KASAN: use-after-free in worker_thread+0x4a2/0x890
[ 36.406105] Read of size 8 at addr ffff8880059600e8 by task kworker/0:2/49
[ 36.408316]
[ 36.408867] CPU: 0 PID: 49 Comm: kworker/0:2 Not tainted 6.2.0-rc3-15798-g5a41237ad1d4-dir8
[ 36.411696] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g15584
[ 36.416157] Workqueue: 0x0 (events)
[ 36.417654] Call Trace:
[ 36.418546] <TASK>
[ 36.419320] dump_stack_lvl+0x96/0xd0
[ 36.420522] print_address_description+0x75/0x350
[ 36.421992] print_report+0x11b/0x250
[ 36.423174] ? _raw_spin_lock_irqsave+0x87/0xd0
[ 36.424806] ? __virt_addr_valid+0xcf/0x170
[ 36.426069] ? worker_thread+0x4a2/0x890
[ 36.427355] kasan_report+0x131/0x160
[ 36.428556] ? worker_thread+0x4a2/0x890
[ 36.430053] worker_thread+0x4a2/0x890
[ 36.431297] ? worker_clr_flags+0x90/0x90
[ 36.432479] kthread+0x166/0x190
[ 36.433493] ? kthread_blkcg+0x50/0x50
[ 36.434669] ret_from_fork+0x22/0x30
[ 36.435923] </TASK>
[ 36.436684]
[ 36.437215] Allocated by task 24:
[ 36.438289] kasan_set_track+0x50/0x80
[ 36.439436] __kasan_kmalloc+0x89/0xa0
[ 36.440566] smsusb_probe+0x374/0xc90
[ 36.441920] usb_probe_interface+0x2d1/0x4c0
[ 36.443253] really_probe+0x1d5/0x580
[ 36.444539] __driver_probe_device+0xe3/0x130
[ 36.446085] driver_probe_device+0x49/0x220
[ 36.447423] __device_attach_driver+0x19e/0x1b0
[ 36.448931] bus_for_each_drv+0xcb/0x110
[ 36.450217] __device_attach+0x132/0x1f0
[ 36.451470] bus_probe_device+0x59/0xf0
[ 36.452563] device_add+0x4ec/0x7b0
[ 36.453830] usb_set_configuration+0xc63/0xe10
[ 36.455230] usb_generic_driver_probe+0x3b/0x80
[ 36.456166] printk: console [ttyGS0] disabled
[ 36.456569] usb_probe_device+0x90/0x110
[ 36.459523] really_probe+0x1d5/0x580
[ 36.461027] __driver_probe_device+0xe3/0x130
[ 36.462465] driver_probe_device+0x49/0x220
[ 36.463847] __device_attach_driver+0x19e/0x1b0
[ 36.465229] bus_for_each_drv+0xcb/0x110
[ 36.466466] __device_attach+0x132/0x1f0
[ 36.467799] bus_probe_device+0x59/0xf0
[ 36.469010] device_add+0x4ec/0x7b0
[ 36.470125] usb_new_device+0x863/0xa00
[ 36.471374] hub_event+0x18c7/0x2220
[ 36.472746] process_one_work+0x34c/0x5b0
[ 36.474041] worker_thread+0x4b7/0x890
[ 36.475216] kthread+0x166/0x190
[ 36.476267] ret_from_fork+0x22/0x30
[ 36.477447]
[ 36.478160] Freed by task 24:
[ 36.479239] kasan_set_track+0x50/0x80
[ 36.480512] kasan_save_free_info+0x2b/0x40
[ 36.481808] ____kasan_slab_free+0x122/0x1a0
[ 36.483173] __kmem_cache_free+0xc4/0x200
[ 36.484563] smsusb_term_device+0xcd/0xf0
[ 36.485896] smsusb_probe+0xc85/0xc90
[ 36.486976] usb_probe_interface+0x2d1/0x4c0
[ 36.488303] really_probe+0x1d5/0x580
[ 36.489498] __driver_probe_device+0xe3/0x130
[ 36.491140] driver_probe_device+0x49/0x220
[ 36.492475] __device_attach_driver+0x19e/0x1b0
[ 36.493988] bus_for_each_drv+0xcb/0x110
[ 36.495171] __device_attach+0x132/0x1f0
[ 36.496617] bus_probe_device+0x59/0xf0
[ 36.497875] device_add+0x4ec/0x7b0
[ 36.498972] usb_set_configuration+0xc63/0xe10
[ 36.500264] usb_generic_driver_probe+0x3b/0x80
[ 36.501740] usb_probe_device+0x90/0x110
[ 36.503084] really_probe+0x1d5/0x580
[ 36.504241] __driver_probe_device+0xe3/0x130
[ 36.505548] driver_probe_device+0x49/0x220
[ 36.506766] __device_attach_driver+0x19e/0x1b0
[ 36.508368] bus_for_each_drv+0xcb/0x110
[ 36.509646] __device_attach+0x132/0x1f0
[ 36.510911] bus_probe_device+0x59/0xf0
[ 36.512103] device_add+0x4ec/0x7b0
[ 36.513215] usb_new_device+0x863/0xa00
[ 36.514736] hub_event+0x18c7/0x2220
[ 36.516130] process_one_work+
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
cifs: fix potential race when tree connecting ipc
Protect access of TCP_Server_Info::hostname when building the ipc tree
name as it might get freed in cifsd thread and thus causing an
use-after-free bug in __tree_connect_dfs_target(). Also, while at it,
update status of IPC tcon on success and then avoid any extra tree
connects. |
| In the Linux kernel, the following vulnerability has been resolved:
btrfs: release path before inode lookup during the ino lookup ioctl
During the ino lookup ioctl we can end up calling btrfs_iget() to get an
inode reference while we are holding on a root's btree. If btrfs_iget()
needs to lookup the inode from the root's btree, because it's not
currently loaded in memory, then it will need to lock another or the
same path in the same root btree. This may result in a deadlock and
trigger the following lockdep splat:
WARNING: possible circular locking dependency detected
6.5.0-rc7-syzkaller-00004-gf7757129e3de #0 Not tainted
------------------------------------------------------
syz-executor277/5012 is trying to acquire lock:
ffff88802df41710 (btrfs-tree-01){++++}-{3:3}, at: __btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
but task is already holding lock:
ffff88802df418e8 (btrfs-tree-00){++++}-{3:3}, at: __btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (btrfs-tree-00){++++}-{3:3}:
down_read_nested+0x49/0x2f0 kernel/locking/rwsem.c:1645
__btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
btrfs_search_slot+0x13a4/0x2f80 fs/btrfs/ctree.c:2302
btrfs_init_root_free_objectid+0x148/0x320 fs/btrfs/disk-io.c:4955
btrfs_init_fs_root fs/btrfs/disk-io.c:1128 [inline]
btrfs_get_root_ref+0x5ae/0xae0 fs/btrfs/disk-io.c:1338
btrfs_get_fs_root fs/btrfs/disk-io.c:1390 [inline]
open_ctree+0x29c8/0x3030 fs/btrfs/disk-io.c:3494
btrfs_fill_super+0x1c7/0x2f0 fs/btrfs/super.c:1154
btrfs_mount_root+0x7e0/0x910 fs/btrfs/super.c:1519
legacy_get_tree+0xef/0x190 fs/fs_context.c:611
vfs_get_tree+0x8c/0x270 fs/super.c:1519
fc_mount fs/namespace.c:1112 [inline]
vfs_kern_mount+0xbc/0x150 fs/namespace.c:1142
btrfs_mount+0x39f/0xb50 fs/btrfs/super.c:1579
legacy_get_tree+0xef/0x190 fs/fs_context.c:611
vfs_get_tree+0x8c/0x270 fs/super.c:1519
do_new_mount+0x28f/0xae0 fs/namespace.c:3335
do_mount fs/namespace.c:3675 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> #0 (btrfs-tree-01){++++}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3142 [inline]
check_prevs_add kernel/locking/lockdep.c:3261 [inline]
validate_chain kernel/locking/lockdep.c:3876 [inline]
__lock_acquire+0x39ff/0x7f70 kernel/locking/lockdep.c:5144
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5761
down_read_nested+0x49/0x2f0 kernel/locking/rwsem.c:1645
__btrfs_tree_read_lock+0x2f/0x220 fs/btrfs/locking.c:136
btrfs_tree_read_lock fs/btrfs/locking.c:142 [inline]
btrfs_read_lock_root_node+0x292/0x3c0 fs/btrfs/locking.c:281
btrfs_search_slot_get_root fs/btrfs/ctree.c:1832 [inline]
btrfs_search_slot+0x4ff/0x2f80 fs/btrfs/ctree.c:2154
btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:412
btrfs_read_locked_inode fs/btrfs/inode.c:3892 [inline]
btrfs_iget_path+0x2d9/0x1520 fs/btrfs/inode.c:5716
btrfs_search_path_in_tree_user fs/btrfs/ioctl.c:1961 [inline]
btrfs_ioctl_ino_lookup_user+0x77a/0xf50 fs/btrfs/ioctl.c:2105
btrfs_ioctl+0xb0b/0xd40 fs/btrfs/ioctl.c:4683
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf8/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
other info
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: fortify the spinlock against deadlock by interrupt
In the function ieee80211_tx_dequeue() there is a particular locking
sequence:
begin:
spin_lock(&local->queue_stop_reason_lock);
q_stopped = local->queue_stop_reasons[q];
spin_unlock(&local->queue_stop_reason_lock);
However small the chance (increased by ftracetest), an asynchronous
interrupt can occur in between of spin_lock() and spin_unlock(),
and the interrupt routine will attempt to lock the same
&local->queue_stop_reason_lock again.
This will cause a costly reset of the CPU and the wifi device or an
altogether hang in the single CPU and single core scenario.
The only remaining spin_lock(&local->queue_stop_reason_lock) that
did not disable interrupts was patched, which should prevent any
deadlocks on the same CPU/core and the same wifi device.
This is the probable trace of the deadlock:
kernel: ================================
kernel: WARNING: inconsistent lock state
kernel: 6.3.0-rc6-mt-20230401-00001-gf86822a1170f #4 Tainted: G W
kernel: --------------------------------
kernel: inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
kernel: kworker/5:0/25656 [HC0[0]:SC0[0]:HE1:SE1] takes:
kernel: ffff9d6190779478 (&local->queue_stop_reason_lock){+.?.}-{2:2}, at: return_to_handler+0x0/0x40
kernel: {IN-SOFTIRQ-W} state was registered at:
kernel: lock_acquire+0xc7/0x2d0
kernel: _raw_spin_lock+0x36/0x50
kernel: ieee80211_tx_dequeue+0xb4/0x1330 [mac80211]
kernel: iwl_mvm_mac_itxq_xmit+0xae/0x210 [iwlmvm]
kernel: iwl_mvm_mac_wake_tx_queue+0x2d/0xd0 [iwlmvm]
kernel: ieee80211_queue_skb+0x450/0x730 [mac80211]
kernel: __ieee80211_xmit_fast.constprop.66+0x834/0xa50 [mac80211]
kernel: __ieee80211_subif_start_xmit+0x217/0x530 [mac80211]
kernel: ieee80211_subif_start_xmit+0x60/0x580 [mac80211]
kernel: dev_hard_start_xmit+0xb5/0x260
kernel: __dev_queue_xmit+0xdbe/0x1200
kernel: neigh_resolve_output+0x166/0x260
kernel: ip_finish_output2+0x216/0xb80
kernel: __ip_finish_output+0x2a4/0x4d0
kernel: ip_finish_output+0x2d/0xd0
kernel: ip_output+0x82/0x2b0
kernel: ip_local_out+0xec/0x110
kernel: igmpv3_sendpack+0x5c/0x90
kernel: igmp_ifc_timer_expire+0x26e/0x4e0
kernel: call_timer_fn+0xa5/0x230
kernel: run_timer_softirq+0x27f/0x550
kernel: __do_softirq+0xb4/0x3a4
kernel: irq_exit_rcu+0x9b/0xc0
kernel: sysvec_apic_timer_interrupt+0x80/0xa0
kernel: asm_sysvec_apic_timer_interrupt+0x1f/0x30
kernel: _raw_spin_unlock_irqrestore+0x3f/0x70
kernel: free_to_partial_list+0x3d6/0x590
kernel: __slab_free+0x1b7/0x310
kernel: kmem_cache_free+0x52d/0x550
kernel: putname+0x5d/0x70
kernel: do_sys_openat2+0x1d7/0x310
kernel: do_sys_open+0x51/0x80
kernel: __x64_sys_openat+0x24/0x30
kernel: do_syscall_64+0x5c/0x90
kernel: entry_SYSCALL_64_after_hwframe+0x72/0xdc
kernel: irq event stamp: 5120729
kernel: hardirqs last enabled at (5120729): [<ffffffff9d149936>] trace_graph_return+0xd6/0x120
kernel: hardirqs last disabled at (5120728): [<ffffffff9d149950>] trace_graph_return+0xf0/0x120
kernel: softirqs last enabled at (5069900): [<ffffffff9cf65b60>] return_to_handler+0x0/0x40
kernel: softirqs last disabled at (5067555): [<ffffffff9cf65b60>] return_to_handler+0x0/0x40
kernel:
other info that might help us debug this:
kernel: Possible unsafe locking scenario:
kernel: CPU0
kernel: ----
kernel: lock(&local->queue_stop_reason_lock);
kernel: <Interrupt>
kernel: lock(&local->queue_stop_reason_lock);
kernel:
*** DEADLOCK ***
kernel: 8 locks held by kworker/5:0/25656:
kernel: #0: ffff9d618009d138 ((wq_completion)events_freezable){+.+.}-{0:0}, at: process_one_work+0x1ca/0x530
kernel: #1: ffffb1ef4637fe68 ((work_completion)(&local->restart_work)){+.+.}-{0:0}, at: process_one_work+0x1ce/0x530
kernel: #2: ffffffff9f166548 (rtnl_mutex){+.+.}-{3:3}, at: return_to_handler+0x0/0x40
kernel: #3: ffff9d619
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
vduse: fix NULL pointer dereference
vduse_vdpa_set_vq_affinity callback can be called
with NULL value as cpu_mask when deleting the vduse
device.
This patch resets virtqueue's IRQ affinity mask value
to set all CPUs instead of dereferencing NULL cpu_mask.
[ 4760.952149] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 4760.959110] #PF: supervisor read access in kernel mode
[ 4760.964247] #PF: error_code(0x0000) - not-present page
[ 4760.969385] PGD 0 P4D 0
[ 4760.971927] Oops: 0000 [#1] PREEMPT SMP PTI
[ 4760.976112] CPU: 13 PID: 2346 Comm: vdpa Not tainted 6.4.0-rc6+ #4
[ 4760.982291] Hardware name: Dell Inc. PowerEdge R640/0W23H8, BIOS 2.8.1 06/26/2020
[ 4760.989769] RIP: 0010:memcpy_orig+0xc5/0x130
[ 4760.994049] Code: 16 f8 4c 89 07 4c 89 4f 08 4c 89 54 17 f0 4c 89 5c 17 f8 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 fa 08 72 1b <4c> 8b 06 4c 8b 4c 16 f8 4c 89 07 4c 89 4c 17 f8 c3 cc cc cc cc 66
[ 4761.012793] RSP: 0018:ffffb1d565abb830 EFLAGS: 00010246
[ 4761.018020] RAX: ffff9f4bf6b27898 RBX: ffff9f4be23969c0 RCX: ffff9f4bcadf6400
[ 4761.025152] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff9f4bf6b27898
[ 4761.032286] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000000000
[ 4761.039416] R10: 0000000000000000 R11: 0000000000000600 R12: 0000000000000000
[ 4761.046549] R13: 0000000000000000 R14: 0000000000000080 R15: ffffb1d565abbb10
[ 4761.053680] FS: 00007f64c2ec2740(0000) GS:ffff9f635f980000(0000) knlGS:0000000000000000
[ 4761.061765] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4761.067513] CR2: 0000000000000000 CR3: 0000001875270006 CR4: 00000000007706e0
[ 4761.074645] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4761.081775] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4761.088909] PKRU: 55555554
[ 4761.091620] Call Trace:
[ 4761.094074] <TASK>
[ 4761.096180] ? __die+0x1f/0x70
[ 4761.099238] ? page_fault_oops+0x171/0x4f0
[ 4761.103340] ? exc_page_fault+0x7b/0x180
[ 4761.107265] ? asm_exc_page_fault+0x22/0x30
[ 4761.111460] ? memcpy_orig+0xc5/0x130
[ 4761.115126] vduse_vdpa_set_vq_affinity+0x3e/0x50 [vduse]
[ 4761.120533] virtnet_clean_affinity.part.0+0x3d/0x90 [virtio_net]
[ 4761.126635] remove_vq_common+0x1a4/0x250 [virtio_net]
[ 4761.131781] virtnet_remove+0x5d/0x70 [virtio_net]
[ 4761.136580] virtio_dev_remove+0x3a/0x90
[ 4761.140509] device_release_driver_internal+0x19b/0x200
[ 4761.145742] bus_remove_device+0xc2/0x130
[ 4761.149755] device_del+0x158/0x3e0
[ 4761.153245] ? kernfs_find_ns+0x35/0xc0
[ 4761.157086] device_unregister+0x13/0x60
[ 4761.161010] unregister_virtio_device+0x11/0x20
[ 4761.165543] device_release_driver_internal+0x19b/0x200
[ 4761.170770] bus_remove_device+0xc2/0x130
[ 4761.174782] device_del+0x158/0x3e0
[ 4761.178276] ? __pfx_vdpa_name_match+0x10/0x10 [vdpa]
[ 4761.183336] device_unregister+0x13/0x60
[ 4761.187260] vdpa_nl_cmd_dev_del_set_doit+0x63/0xe0 [vdpa] |
| In the Linux kernel, the following vulnerability has been resolved:
ALSA: ymfpci: Create card with device-managed snd_devm_card_new()
snd_card_ymfpci_remove() was removed in commit c6e6bb5eab74 ("ALSA:
ymfpci: Allocate resources with device-managed APIs"), but the call to
snd_card_new() was not replaced with snd_devm_card_new().
Since there was no longer a call to snd_card_free, unloading the module
would eventually result in Oops:
[697561.532887] BUG: unable to handle page fault for address: ffffffffc0924480
[697561.532893] #PF: supervisor read access in kernel mode
[697561.532896] #PF: error_code(0x0000) - not-present page
[697561.532899] PGD ae1e15067 P4D ae1e15067 PUD ae1e17067 PMD 11a8f5067 PTE 0
[697561.532905] Oops: 0000 [#1] PREEMPT SMP NOPTI
[697561.532909] CPU: 21 PID: 5080 Comm: wireplumber Tainted: G W OE 6.2.7 #1
[697561.532914] Hardware name: System manufacturer System Product Name/TUF GAMING X570-PLUS, BIOS 4408 10/28/2022
[697561.532916] RIP: 0010:try_module_get.part.0+0x1a/0xe0
[697561.532924] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 49 89 fc bf 01 00 00 00 e8 56 3c f8 ff <41> 83 3c 24 02 0f 84 96 00 00 00 41 8b 84 24 30 03 00 00 85 c0 0f
[697561.532927] RSP: 0018:ffffbe9b858c3bd8 EFLAGS: 00010246
[697561.532930] RAX: ffff9815d14f1900 RBX: ffff9815c14e6000 RCX: 0000000000000000
[697561.532933] RDX: 0000000000000000 RSI: ffffffffc055092c RDI: ffffffffb3778c1a
[697561.532935] RBP: ffffbe9b858c3be8 R08: 0000000000000040 R09: ffff981a1a741380
[697561.532937] R10: ffffbe9b858c3c80 R11: 00000009d56533a6 R12: ffffffffc0924480
[697561.532939] R13: ffff9823439d8500 R14: 0000000000000025 R15: ffff9815cd109f80
[697561.532942] FS: 00007f13084f1f80(0000) GS:ffff9824aef40000(0000) knlGS:0000000000000000
[697561.532945] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[697561.532947] CR2: ffffffffc0924480 CR3: 0000000145344000 CR4: 0000000000350ee0
[697561.532949] Call Trace:
[697561.532951] <TASK>
[697561.532955] try_module_get+0x13/0x30
[697561.532960] snd_ctl_open+0x61/0x1c0 [snd]
[697561.532976] snd_open+0xb4/0x1e0 [snd]
[697561.532989] chrdev_open+0xc7/0x240
[697561.532995] ? fsnotify_perm.part.0+0x6e/0x160
[697561.533000] ? __pfx_chrdev_open+0x10/0x10
[697561.533005] do_dentry_open+0x169/0x440
[697561.533009] vfs_open+0x2d/0x40
[697561.533012] path_openat+0xa9d/0x10d0
[697561.533017] ? debug_smp_processor_id+0x17/0x20
[697561.533022] ? trigger_load_balance+0x65/0x370
[697561.533026] do_filp_open+0xb2/0x160
[697561.533032] ? _raw_spin_unlock+0x19/0x40
[697561.533036] ? alloc_fd+0xa9/0x190
[697561.533040] do_sys_openat2+0x9f/0x160
[697561.533044] __x64_sys_openat+0x55/0x90
[697561.533048] do_syscall_64+0x3b/0x90
[697561.533052] entry_SYSCALL_64_after_hwframe+0x72/0xdc
[697561.533056] RIP: 0033:0x7f1308a40db4
[697561.533059] Code: 24 20 eb 8f 66 90 44 89 54 24 0c e8 46 68 f8 ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 32 44 89 c7 89 44 24 0c e8 78 68 f8 ff 8b 44
[697561.533062] RSP: 002b:00007ffcce664450 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
[697561.533066] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1308a40db4
[697561.533068] RDX: 0000000000080000 RSI: 00007ffcce664690 RDI: 00000000ffffff9c
[697561.533070] RBP: 00007ffcce664690 R08: 0000000000000000 R09: 0000000000000012
[697561.533072] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080000
[697561.533074] R13: 00007f13054b069b R14: 0000565209f83200 R15: 0000000000000000
[697561.533078] </TASK> |
| In the Linux kernel, the following vulnerability has been resolved:
arm64: set __exception_irq_entry with __irq_entry as a default
filter_irq_stacks() is supposed to cut entries which are related irq entries
from its call stack.
And in_irqentry_text() which is called by filter_irq_stacks()
uses __irqentry_text_start/end symbol to find irq entries in callstack.
But it doesn't work correctly as without "CONFIG_FUNCTION_GRAPH_TRACER",
arm64 kernel doesn't include gic_handle_irq which is entry point of arm64 irq
between __irqentry_text_start and __irqentry_text_end as we discussed in below link.
https://lore.kernel.org/all/CACT4Y+aReMGLYua2rCLHgFpS9io5cZC04Q8GLs-uNmrn1ezxYQ@mail.gmail.com/#t
This problem can makes unintentional deep call stack entries especially
in KASAN enabled situation as below.
[ 2479.383395]I[0:launcher-loader: 1719] Stack depot reached limit capacity
[ 2479.383538]I[0:launcher-loader: 1719] WARNING: CPU: 0 PID: 1719 at lib/stackdepot.c:129 __stack_depot_save+0x464/0x46c
[ 2479.385693]I[0:launcher-loader: 1719] pstate: 624000c5 (nZCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[ 2479.385724]I[0:launcher-loader: 1719] pc : __stack_depot_save+0x464/0x46c
[ 2479.385751]I[0:launcher-loader: 1719] lr : __stack_depot_save+0x460/0x46c
[ 2479.385774]I[0:launcher-loader: 1719] sp : ffffffc0080073c0
[ 2479.385793]I[0:launcher-loader: 1719] x29: ffffffc0080073e0 x28: ffffffd00b78a000 x27: 0000000000000000
[ 2479.385839]I[0:launcher-loader: 1719] x26: 000000000004d1dd x25: ffffff891474f000 x24: 00000000ca64d1dd
[ 2479.385882]I[0:launcher-loader: 1719] x23: 0000000000000200 x22: 0000000000000220 x21: 0000000000000040
[ 2479.385925]I[0:launcher-loader: 1719] x20: ffffffc008007440 x19: 0000000000000000 x18: 0000000000000000
[ 2479.385969]I[0:launcher-loader: 1719] x17: 2065726568207475 x16: 000000000000005e x15: 2d2d2d2d2d2d2d20
[ 2479.386013]I[0:launcher-loader: 1719] x14: 5d39313731203a72 x13: 00000000002f6b30 x12: 00000000002f6af8
[ 2479.386057]I[0:launcher-loader: 1719] x11: 00000000ffffffff x10: ffffffb90aacf000 x9 : e8a74a6c16008800
[ 2479.386101]I[0:launcher-loader: 1719] x8 : e8a74a6c16008800 x7 : 00000000002f6b30 x6 : 00000000002f6af8
[ 2479.386145]I[0:launcher-loader: 1719] x5 : ffffffc0080070c8 x4 : ffffffd00b192380 x3 : ffffffd0092b313c
[ 2479.386189]I[0:launcher-loader: 1719] x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000022
[ 2479.386231]I[0:launcher-loader: 1719] Call trace:
[ 2479.386248]I[0:launcher-loader: 1719] __stack_depot_save+0x464/0x46c
[ 2479.386273]I[0:launcher-loader: 1719] kasan_save_stack+0x58/0x70
[ 2479.386303]I[0:launcher-loader: 1719] save_stack_info+0x34/0x138
[ 2479.386331]I[0:launcher-loader: 1719] kasan_save_free_info+0x18/0x24
[ 2479.386358]I[0:launcher-loader: 1719] ____kasan_slab_free+0x16c/0x170
[ 2479.386385]I[0:launcher-loader: 1719] __kasan_slab_free+0x10/0x20
[ 2479.386410]I[0:launcher-loader: 1719] kmem_cache_free+0x238/0x53c
[ 2479.386435]I[0:launcher-loader: 1719] mempool_free_slab+0x1c/0x28
[ 2479.386460]I[0:launcher-loader: 1719] mempool_free+0x7c/0x1a0
[ 2479.386484]I[0:launcher-loader: 1719] bvec_free+0x34/0x80
[ 2479.386514]I[0:launcher-loader: 1719] bio_free+0x60/0x98
[ 2479.386540]I[0:launcher-loader: 1719] bio_put+0x50/0x21c
[ 2479.386567]I[0:launcher-loader: 1719] f2fs_write_end_io+0x4ac/0x4d0
[ 2479.386594]I[0:launcher-loader: 1719] bio_endio+0x2dc/0x300
[ 2479.386622]I[0:launcher-loader: 1719] __dm_io_complete+0x324/0x37c
[ 2479.386650]I[0:launcher-loader: 1719] dm_io_dec_pending+0x60/0xa4
[ 2479.386676]I[0:launcher-loader: 1719] clone_endio+0xf8/0x2f0
[ 2479.386700]I[0:launcher-loader: 1719] bio_endio+0x2dc/0x300
[ 2479.386727]I[0:launcher-loader: 1719] blk_update_request+0x258/0x63c
[ 2479.386754]I[0:launcher-loader: 1719] scsi_end_request+0x50/0x304
[ 2479.386782]I[0:launcher-loader: 1719] scsi_io_completion+0x88/0x160
[ 2479.386808]I[0:launcher-loader: 1719] scsi_finish_command+0x17c/0x194
[ 2479.386833]I
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix potential user-after-free
This fixes all instances of which requires to allocate a buffer calling
alloc_skb which may release the chan lock and reacquire later which
makes it possible that the chan is disconnected in the meantime. |
| In the Linux kernel, the following vulnerability has been resolved:
virtio-vdpa: Fix cpumask memory leak in virtio_vdpa_find_vqs()
Free the cpumask allocated by create_affinity_masks() before returning
from the function. |
