{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40355", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.187Z", "datePublished": "2025-12-16T13:30:28.017Z", "dateUpdated": "2025-12-16T13:30:28.017Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-16T13:30:28.017Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsysfs: check visibility before changing group attribute ownership\n\nSince commit 0c17270f9b92 (\"net: sysfs: Implement is_visible for\nphys_(port_id, port_name, switch_id)\"), __dev_change_net_namespace() can\nhit WARN_ON() when trying to change owner of a file that isn't visible.\nSee the trace below:\n\n WARNING: CPU: 6 PID: 2938 at net/core/dev.c:12410 __dev_change_net_namespace+0xb89/0xc30\n CPU: 6 UID: 0 PID: 2938 Comm: incusd Not tainted 6.17.1-1-mainline #1 PREEMPT(full) 4b783b4a638669fb644857f484487d17cb45ed1f\n Hardware name: Framework Laptop 13 (AMD Ryzen 7040Series)/FRANMDCP07, BIOS 03.07 02/19/2025\n RIP: 0010:__dev_change_net_namespace+0xb89/0xc30\n [...]\n Call Trace:\n <TASK>\n ? if6_seq_show+0x30/0x50\n do_setlink.isra.0+0xc7/0x1270\n ? __nla_validate_parse+0x5c/0xcc0\n ? security_capable+0x94/0x1a0\n rtnl_newlink+0x858/0xc20\n ? update_curr+0x8e/0x1c0\n ? update_entity_lag+0x71/0x80\n ? sched_balance_newidle+0x358/0x450\n ? psi_task_switch+0x113/0x2a0\n ? __pfx_rtnl_newlink+0x10/0x10\n rtnetlink_rcv_msg+0x346/0x3e0\n ? sched_clock+0x10/0x30\n ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x59/0x110\n netlink_unicast+0x285/0x3c0\n ? __alloc_skb+0xdb/0x1a0\n netlink_sendmsg+0x20d/0x430\n ____sys_sendmsg+0x39f/0x3d0\n ? import_iovec+0x2f/0x40\n ___sys_sendmsg+0x99/0xe0\n __sys_sendmsg+0x8a/0xf0\n do_syscall_64+0x81/0x970\n ? __sys_bind+0xe3/0x110\n ? syscall_exit_work+0x143/0x1b0\n ? do_syscall_64+0x244/0x970\n ? sock_alloc_file+0x63/0xc0\n ? syscall_exit_work+0x143/0x1b0\n ? do_syscall_64+0x244/0x970\n ? alloc_fd+0x12e/0x190\n ? put_unused_fd+0x2a/0x70\n ? do_sys_openat2+0xa2/0xe0\n ? syscall_exit_work+0x143/0x1b0\n ? do_syscall_64+0x244/0x970\n ? exc_page_fault+0x7e/0x1a0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [...]\n </TASK>\n\nFix this by checking is_visible() before trying to touch the attribute."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/sysfs/group.c"], "versions": [{"version": "303a42769c4c4d8e5e3ad928df87eb36f8c1fa60", "lessThan": "ac2c526e103285d80a0330b91a318f6c9276d35a", "status": "affected", "versionType": "git"}, {"version": "303a42769c4c4d8e5e3ad928df87eb36f8c1fa60", "lessThan": "c7fbb8218b4ad35fec0bd2256d2b9c8d60331f33", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/sysfs/group.c"], "versions": [{"version": "5.7", "status": "affected"}, {"version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.6", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.17.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "6.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ac2c526e103285d80a0330b91a318f6c9276d35a"}, {"url": "https://git.kernel.org/stable/c/c7fbb8218b4ad35fec0bd2256d2b9c8d60331f33"}], "title": "sysfs: check visibility before changing group attribute ownership", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsysfs: check visibility before changing group attribute ownership\n\nSince commit 0c17270f9b92 (\"net: sysfs: Implement is_visible for\nphys_(port_id, port_name, switch_id)\"), __dev_change_net_namespace() can\nhit WARN_ON() when trying to change owner of a file that isn't visible.\nSee the trace below:\n\n WARNING: CPU: 6 PID: 2938 at net/core/dev.c:12410 __dev_change_net_namespace+0xb89/0xc30\n CPU: 6 UID: 0 PID: 2938 Comm: incusd Not tainted 6.17.1-1-mainline #1 PREEMPT(full) 4b783b4a638669fb644857f484487d17cb45ed1f\n Hardware name: Framework Laptop 13 (AMD Ryzen 7040Series)/FRANMDCP07, BIOS 03.07 02/19/2025\n RIP: 0010:__dev_change_net_namespace+0xb89/0xc30\n [...]\n Call Trace:\n <TASK>\n ? if6_seq_show+0x30/0x50\n do_setlink.isra.0+0xc7/0x1270\n ? __nla_validate_parse+0x5c/0xcc0\n ? security_capable+0x94/0x1a0\n rtnl_newlink+0x858/0xc20\n ? update_curr+0x8e/0x1c0\n ? update_entity_lag+0x71/0x80\n ? sched_balance_newidle+0x358/0x450\n ? psi_task_switch+0x113/0x2a0\n ? __pfx_rtnl_newlink+0x10/0x10\n rtnetlink_rcv_msg+0x346/0x3e0\n ? sched_clock+0x10/0x30\n ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x59/0x110\n netlink_unicast+0x285/0x3c0\n ? __alloc_skb+0xdb/0x1a0\n netlink_sendmsg+0x20d/0x430\n ____sys_sendmsg+0x39f/0x3d0\n ? import_iovec+0x2f/0x40\n ___sys_sendmsg+0x99/0xe0\n __sys_sendmsg+0x8a/0xf0\n do_syscall_64+0x81/0x970\n ? __sys_bind+0xe3/0x110\n ? syscall_exit_work+0x143/0x1b0\n ? do_syscall_64+0x244/0x970\n ? sock_alloc_file+0x63/0xc0\n ? syscall_exit_work+0x143/0x1b0\n ? do_syscall_64+0x244/0x970\n ? alloc_fd+0x12e/0x190\n ? put_unused_fd+0x2a/0x70\n ? do_sys_openat2+0xa2/0xe0\n ? syscall_exit_work+0x143/0x1b0\n ? do_syscall_64+0x244/0x970\n ? exc_page_fault+0x7e/0x1a0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [...]\n </TASK>\n\nFix this by checking is_visible() before trying to touch the attribute."}], "id": "CVE-2025-40355", "lastModified": "2025-12-16T14:15:47.423", "metrics": {}, "published": "2025-12-16T14:15:47.423", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ac2c526e103285d80a0330b91a318f6c9276d35a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c7fbb8218b4ad35fec0bd2256d2b9c8d60331f33"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}