{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72393", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.924Z", "datePublished": "2026-08-15T05:56:21.081Z", "dateUpdated": "2026-08-15T05:56:21.081Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:56:21.081Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: fbnic: don't cache shinfo across skb realloc\n\nfbnic_tx_lso() calls skb_cow_head() which may reallocate the skb\nincluding the shared info. We can't use the pointer calculated\nbefore the call.\n\n BUG: KASAN: slab-use-after-free in fbnic_tx_lso.isra.0+0x668/0x8e0\n Read of size 4 at addr ff110000262edd98 by task swapper/5/0\n Call Trace:\n fbnic_tx_lso.isra.0+0x668/0x8e0\n fbnic_xmit_frame+0x622/0xba0\n dev_hard_start_xmit+0xf4/0x620\n\n Allocated by task 8653:\n __alloc_skb+0x11e/0x5f0\n alloc_skb_with_frags+0xcc/0x6c0\n sock_alloc_send_pskb+0x327/0x3f0\n __ip_append_data+0x188b/0x47a0\n ip_make_skb+0x24a/0x300\n udp_sendmsg+0x14d2/0x21e0\n\n Freed by task 0:\n kfree+0x123/0x5a0\n pskb_expand_head+0x36c/0xfa0\n fbnic_tx_lso.isra.0+0x500/0x8e0\n fbnic_xmit_frame+0x622/0xba0\n dev_hard_start_xmit+0xf4/0x620\n sch_direct_xmit+0x25b/0x1100\n\n The buggy address belongs to the object at ff110000262edc40\n which belongs to the cache skbuff_small_head of size 640\n The buggy address is located 344 bytes inside of\n freed 640-byte region [ff110000262edc40, ff110000262ede"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/meta/fbnic/fbnic_txrx.c"], "versions": [{"version": "b0b0f52042acb324cd39fbefb2b1ae83af8f8ae1", "lessThan": "83df3e2594cd78aa40b1246a19879abb4891945b", "status": "affected", "versionType": "git"}, {"version": "b0b0f52042acb324cd39fbefb2b1ae83af8f8ae1", "lessThan": "21f304c2aae46625e050c28d979f4b9d83faa85e", "status": "affected", "versionType": "git"}, {"version": "b0b0f52042acb324cd39fbefb2b1ae83af8f8ae1", "lessThan": "62b68b774f06bf52e329f254f0199bc43d350ccf", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/meta/fbnic/fbnic_txrx.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc2", "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": "6.15", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.2-rc2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/83df3e2594cd78aa40b1246a19879abb4891945b"}, {"url": "https://git.kernel.org/stable/c/21f304c2aae46625e050c28d979f4b9d83faa85e"}, {"url": "https://git.kernel.org/stable/c/62b68b774f06bf52e329f254f0199bc43d350ccf"}], "title": "eth: fbnic: don't cache shinfo across skb realloc", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/meta/fbnic/fbnic_txrx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "83df3e2594cd78aa40b1246a19879abb4891945b", "status": "affected", "version": "b0b0f52042acb324cd39fbefb2b1ae83af8f8ae1", "versionType": "git"}, {"lessThan": "21f304c2aae46625e050c28d979f4b9d83faa85e", "status": "affected", "version": "b0b0f52042acb324cd39fbefb2b1ae83af8f8ae1", "versionType": "git"}, {"lessThan": "62b68b774f06bf52e329f254f0199bc43d350ccf", "status": "affected", "version": "b0b0f52042acb324cd39fbefb2b1ae83af8f8ae1", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/meta/fbnic/fbnic_txrx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"lessThan": "6.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: fbnic: don't cache shinfo across skb realloc\n\nfbnic_tx_lso() calls skb_cow_head() which may reallocate the skb\nincluding the shared info. We can't use the pointer calculated\nbefore the call.\n\n BUG: KASAN: slab-use-after-free in fbnic_tx_lso.isra.0+0x668/0x8e0\n Read of size 4 at addr ff110000262edd98 by task swapper/5/0\n Call Trace:\n fbnic_tx_lso.isra.0+0x668/0x8e0\n fbnic_xmit_frame+0x622/0xba0\n dev_hard_start_xmit+0xf4/0x620\n\n Allocated by task 8653:\n __alloc_skb+0x11e/0x5f0\n alloc_skb_with_frags+0xcc/0x6c0\n sock_alloc_send_pskb+0x327/0x3f0\n __ip_append_data+0x188b/0x47a0\n ip_make_skb+0x24a/0x300\n udp_sendmsg+0x14d2/0x21e0\n\n Freed by task 0:\n kfree+0x123/0x5a0\n pskb_expand_head+0x36c/0xfa0\n fbnic_tx_lso.isra.0+0x500/0x8e0\n fbnic_xmit_frame+0x622/0xba0\n dev_hard_start_xmit+0xf4/0x620\n sch_direct_xmit+0x25b/0x1100\n\n The buggy address belongs to the object at ff110000262edc40\n which belongs to the cache skbuff_small_head of size 640\n The buggy address is located 344 bytes inside of\n freed 640-byte region [ff110000262edc40, ff110000262ede"}], "id": "CVE-2026-72393", "lastModified": "2026-08-15T06:22:12.847", "metrics": {}, "published": "2026-08-15T06:22:12.847", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/21f304c2aae46625e050c28d979f4b9d83faa85e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/62b68b774f06bf52e329f254f0199bc43d350ccf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/83df3e2594cd78aa40b1246a19879abb4891945b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}