{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-53492", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-01T11:39:39.403Z", "datePublished": "2025-10-01T11:45:44.019Z", "dateUpdated": "2025-10-01T11:45:44.019Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-01T11:45:44.019Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: do not ignore genmask when looking up chain by id\n\nWhen adding a rule to a chain referring to its ID, if that chain had been\ndeleted on the same batch, the rule might end up referring to a deleted\nchain.\n\nThis will lead to a WARNING like following:\n\n[ 33.098431] ------------[ cut here ]------------\n[ 33.098678] WARNING: CPU: 5 PID: 69 at net/netfilter/nf_tables_api.c:2037 nf_tables_chain_destroy+0x23d/0x260\n[ 33.099217] Modules linked in:\n[ 33.099388] CPU: 5 PID: 69 Comm: kworker/5:1 Not tainted 6.4.0+ #409\n[ 33.099726] Workqueue: events nf_tables_trans_destroy_work\n[ 33.100018] RIP: 0010:nf_tables_chain_destroy+0x23d/0x260\n[ 33.100306] Code: 8b 7c 24 68 e8 64 9c ed fe 4c 89 e7 e8 5c 9c ed fe 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7 c3 cc cc cc cc <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7\n[ 33.101271] RSP: 0018:ffffc900004ffc48 EFLAGS: 00010202\n[ 33.101546] RAX: 0000000000000001 RBX: ffff888006fc0a28 RCX: 0000000000000000\n[ 33.101920] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n[ 33.102649] RBP: ffffc900004ffc78 R08: 0000000000000000 R09: 0000000000000000\n[ 33.103018] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880135ef500\n[ 33.103385] R13: 0000000000000000 R14: dead000000000122 R15: ffff888006fc0a10\n[ 33.103762] FS: 0000000000000000(0000) GS:ffff888024c80000(0000) knlGS:0000000000000000\n[ 33.104184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 33.104493] CR2: 00007fe863b56a50 CR3: 00000000124b0001 CR4: 0000000000770ee0\n[ 33.104872] PKRU: 55555554\n[ 33.104999] Call Trace:\n[ 33.105113] <TASK>\n[ 33.105214] ? show_regs+0x72/0x90\n[ 33.105371] ? __warn+0xa5/0x210\n[ 33.105520] ? nf_tables_chain_destroy+0x23d/0x260\n[ 33.105732] ? report_bug+0x1f2/0x200\n[ 33.105902] ? handle_bug+0x46/0x90\n[ 33.106546] ? exc_invalid_op+0x19/0x50\n[ 33.106762] ? asm_exc_invalid_op+0x1b/0x20\n[ 33.106995] ? nf_tables_chain_destroy+0x23d/0x260\n[ 33.107249] ? nf_tables_chain_destroy+0x30/0x260\n[ 33.107506] nf_tables_trans_destroy_work+0x669/0x680\n[ 33.107782] ? mark_held_locks+0x28/0xa0\n[ 33.107996] ? __pfx_nf_tables_trans_destroy_work+0x10/0x10\n[ 33.108294] ? _raw_spin_unlock_irq+0x28/0x70\n[ 33.108538] process_one_work+0x68c/0xb70\n[ 33.108755] ? lock_acquire+0x17f/0x420\n[ 33.108977] ? __pfx_process_one_work+0x10/0x10\n[ 33.109218] ? do_raw_spin_lock+0x128/0x1d0\n[ 33.109435] ? _raw_spin_lock_irq+0x71/0x80\n[ 33.109634] worker_thread+0x2bd/0x700\n[ 33.109817] ? __pfx_worker_thread+0x10/0x10\n[ 33.110254] kthread+0x18b/0x1d0\n[ 33.110410] ? __pfx_kthread+0x10/0x10\n[ 33.110581] ret_from_fork+0x29/0x50\n[ 33.110757] </TASK>\n[ 33.110866] irq event stamp: 1651\n[ 33.111017] hardirqs last enabled at (1659): [<ffffffffa206a209>] __up_console_sem+0x79/0xa0\n[ 33.111379] hardirqs last disabled at (1666): [<ffffffffa206a1ee>] __up_console_sem+0x5e/0xa0\n[ 33.111740] softirqs last enabled at (1616): [<ffffffffa1f5d40e>] __irq_exit_rcu+0x9e/0xe0\n[ 33.112094] softirqs last disabled at (1367): [<ffffffffa1f5d40e>] __irq_exit_rcu+0x9e/0xe0\n[ 33.112453] ---[ end trace 0000000000000000 ]---\n\nThis is due to the nft_chain_lookup_byid ignoring the genmask. After this\nchange, adding the new rule will fail as it will not find the chain."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_tables_api.c"], "versions": [{"version": "837830a4b439bfeb86c70b0115c280377c84714b", "lessThan": "4ae2e501331aaa506eaf760339bb2f43e5769395", "status": "affected", "versionType": "git"}, {"version": "837830a4b439bfeb86c70b0115c280377c84714b", "lessThan": "041e2ac88caef286b39064e83e825e3f53113d36", "status": "affected", "versionType": "git"}, {"version": "837830a4b439bfeb86c70b0115c280377c84714b", "lessThan": "fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49", "status": "affected", "versionType": "git"}, {"version": "837830a4b439bfeb86c70b0115c280377c84714b", "lessThan": "5e5e967e8505fbdabfb6497367ec1b808cadc356", "status": "affected", "versionType": "git"}, {"version": "837830a4b439bfeb86c70b0115c280377c84714b", "lessThan": "515ad530795c118f012539ed76d02bacfd426d89", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_tables_api.c"], "versions": [{"version": "5.9", "status": "affected"}, {"version": "0", "lessThan": "5.9", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.188", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.121", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.39", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.4", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5", "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": "5.9", "versionEndExcluding": "5.10.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "5.15.121"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.1.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.4.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4ae2e501331aaa506eaf760339bb2f43e5769395"}, {"url": "https://git.kernel.org/stable/c/041e2ac88caef286b39064e83e825e3f53113d36"}, {"url": "https://git.kernel.org/stable/c/fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49"}, {"url": "https://git.kernel.org/stable/c/5e5e967e8505fbdabfb6497367ec1b808cadc356"}, {"url": "https://git.kernel.org/stable/c/515ad530795c118f012539ed76d02bacfd426d89"}], "title": "netfilter: nf_tables: do not ignore genmask when looking up chain by id", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: do not ignore genmask when looking up chain by id\n\nWhen adding a rule to a chain referring to its ID, if that chain had been\ndeleted on the same batch, the rule might end up referring to a deleted\nchain.\n\nThis will lead to a WARNING like following:\n\n[ 33.098431] ------------[ cut here ]------------\n[ 33.098678] WARNING: CPU: 5 PID: 69 at net/netfilter/nf_tables_api.c:2037 nf_tables_chain_destroy+0x23d/0x260\n[ 33.099217] Modules linked in:\n[ 33.099388] CPU: 5 PID: 69 Comm: kworker/5:1 Not tainted 6.4.0+ #409\n[ 33.099726] Workqueue: events nf_tables_trans_destroy_work\n[ 33.100018] RIP: 0010:nf_tables_chain_destroy+0x23d/0x260\n[ 33.100306] Code: 8b 7c 24 68 e8 64 9c ed fe 4c 89 e7 e8 5c 9c ed fe 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7 c3 cc cc cc cc <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 89 c6 89 c7\n[ 33.101271] RSP: 0018:ffffc900004ffc48 EFLAGS: 00010202\n[ 33.101546] RAX: 0000000000000001 RBX: ffff888006fc0a28 RCX: 0000000000000000\n[ 33.101920] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n[ 33.102649] RBP: ffffc900004ffc78 R08: 0000000000000000 R09: 0000000000000000\n[ 33.103018] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880135ef500\n[ 33.103385] R13: 0000000000000000 R14: dead000000000122 R15: ffff888006fc0a10\n[ 33.103762] FS: 0000000000000000(0000) GS:ffff888024c80000(0000) knlGS:0000000000000000\n[ 33.104184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 33.104493] CR2: 00007fe863b56a50 CR3: 00000000124b0001 CR4: 0000000000770ee0\n[ 33.104872] PKRU: 55555554\n[ 33.104999] Call Trace:\n[ 33.105113] <TASK>\n[ 33.105214] ? show_regs+0x72/0x90\n[ 33.105371] ? __warn+0xa5/0x210\n[ 33.105520] ? nf_tables_chain_destroy+0x23d/0x260\n[ 33.105732] ? report_bug+0x1f2/0x200\n[ 33.105902] ? handle_bug+0x46/0x90\n[ 33.106546] ? exc_invalid_op+0x19/0x50\n[ 33.106762] ? asm_exc_invalid_op+0x1b/0x20\n[ 33.106995] ? nf_tables_chain_destroy+0x23d/0x260\n[ 33.107249] ? nf_tables_chain_destroy+0x30/0x260\n[ 33.107506] nf_tables_trans_destroy_work+0x669/0x680\n[ 33.107782] ? mark_held_locks+0x28/0xa0\n[ 33.107996] ? __pfx_nf_tables_trans_destroy_work+0x10/0x10\n[ 33.108294] ? _raw_spin_unlock_irq+0x28/0x70\n[ 33.108538] process_one_work+0x68c/0xb70\n[ 33.108755] ? lock_acquire+0x17f/0x420\n[ 33.108977] ? __pfx_process_one_work+0x10/0x10\n[ 33.109218] ? do_raw_spin_lock+0x128/0x1d0\n[ 33.109435] ? _raw_spin_lock_irq+0x71/0x80\n[ 33.109634] worker_thread+0x2bd/0x700\n[ 33.109817] ? __pfx_worker_thread+0x10/0x10\n[ 33.110254] kthread+0x18b/0x1d0\n[ 33.110410] ? __pfx_kthread+0x10/0x10\n[ 33.110581] ret_from_fork+0x29/0x50\n[ 33.110757] </TASK>\n[ 33.110866] irq event stamp: 1651\n[ 33.111017] hardirqs last enabled at (1659): [<ffffffffa206a209>] __up_console_sem+0x79/0xa0\n[ 33.111379] hardirqs last disabled at (1666): [<ffffffffa206a1ee>] __up_console_sem+0x5e/0xa0\n[ 33.111740] softirqs last enabled at (1616): [<ffffffffa1f5d40e>] __irq_exit_rcu+0x9e/0xe0\n[ 33.112094] softirqs last disabled at (1367): [<ffffffffa1f5d40e>] __irq_exit_rcu+0x9e/0xe0\n[ 33.112453] ---[ end trace 0000000000000000 ]---\n\nThis is due to the nft_chain_lookup_byid ignoring the genmask. After this\nchange, adding the new rule will fail as it will not find the chain."}], "id": "CVE-2023-53492", "lastModified": "2025-10-01T12:15:52.390", "metrics": {}, "published": "2025-10-01T12:15:52.390", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/041e2ac88caef286b39064e83e825e3f53113d36"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4ae2e501331aaa506eaf760339bb2f43e5769395"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/515ad530795c118f012539ed76d02bacfd426d89"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5e5e967e8505fbdabfb6497367ec1b808cadc356"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fc95c8b02c6160936f1f3d8d9d7f4f66f3c84b49"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: netfilter: nf_tables: do not ignore genmask when looking up chain by id", "id": "2400758", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400758"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-53492", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53492\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53492\nhttps://lore.kernel.org/linux-cve-announce/2025100124-CVE-2023-53492-18fd@gregkh/T"], "threat_severity": "Moderate"}

{}