{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53035", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.380Z", "datePublished": "2026-06-24T16:29:42.560Z", "dateUpdated": "2026-06-24T16:29:42.560Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:29:42.560Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix af_unix iter deadlock\n\nbpf_iter_unix_seq_show() may deadlock when lock_sock_fast() takes the fast\npath and the iter prog attempts to update a sockmap. Which ends up spinning\nat sock_map_update_elem()'s bh_lock_sock():\n\nWARNING: possible recursive locking detected\ntest_progs/1393 is trying to acquire lock:\nffff88811ec25f58 (slock-AF_UNIX){+...}-{3:3}, at: sock_map_update_elem+0xdb/0x1f0\n\nbut task is already holding lock:\nffff88811ec25f58 (slock-AF_UNIX){+...}-{3:3}, at: __lock_sock_fast+0x37/0xe0\n\nother info that might help us debug this:\n Possible unsafe locking scenario:\n\n CPU0\n ----\n lock(slock-AF_UNIX);\n lock(slock-AF_UNIX);\n\n *** DEADLOCK ***\n\n May be due to missing lock nesting notation\n\n4 locks held by test_progs/1393:\n #0: ffff88814b59c790 (&p->lock){+.+.}-{4:4}, at: bpf_seq_read+0x59/0x10d0\n #1: ffff88811ec25fd8 (sk_lock-AF_UNIX){+.+.}-{0:0}, at: bpf_seq_read+0x42c/0x10d0\n #2: ffff88811ec25f58 (slock-AF_UNIX){+...}-{3:3}, at: __lock_sock_fast+0x37/0xe0\n #3: ffffffff85a6a7c0 (rcu_read_lock){....}-{1:3}, at: bpf_iter_run_prog+0x51d/0xb00\n\nCall Trace:\n dump_stack_lvl+0x5d/0x80\n print_deadlock_bug.cold+0xc0/0xce\n __lock_acquire+0x130f/0x2590\n lock_acquire+0x14e/0x2b0\n _raw_spin_lock+0x30/0x40\n sock_map_update_elem+0xdb/0x1f0\n bpf_prog_2d0075e5d9b721cd_dump_unix+0x55/0x4f4\n bpf_iter_run_prog+0x5b9/0xb00\n bpf_iter_unix_seq_show+0x1f7/0x2e0\n bpf_seq_read+0x42c/0x10d0\n vfs_read+0x171/0xb20\n ksys_read+0xff/0x200\n do_syscall_64+0x6b/0x3a0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/unix/af_unix.c"], "versions": [{"version": "2c860a43dd77f969bb959336a2f743d7103a8f63", "lessThan": "bd3592129f24243713673a07225cf1f15a9bb835", "status": "affected", "versionType": "git"}, {"version": "2c860a43dd77f969bb959336a2f743d7103a8f63", "lessThan": "3cef33b9813b78f227942572fb317afcd5c9ac94", "status": "affected", "versionType": "git"}, {"version": "2c860a43dd77f969bb959336a2f743d7103a8f63", "lessThan": "87828b380956d4986f59f2c086e0b09b3e6cdaae", "status": "affected", "versionType": "git"}, {"version": "2c860a43dd77f969bb959336a2f743d7103a8f63", "lessThan": "527057ebe8076dfbcaef51195ff1b7508646be2c", "status": "affected", "versionType": "git"}, {"version": "2c860a43dd77f969bb959336a2f743d7103a8f63", "lessThan": "66d9fab4565eafe1afe7ba0581f79b76073b60fa", "status": "affected", "versionType": "git"}, {"version": "2c860a43dd77f969bb959336a2f743d7103a8f63", "lessThan": "4d328dd695383224aa750ddee6b4ad40c0f8d205", "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/unix/af_unix.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "5.15", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bd3592129f24243713673a07225cf1f15a9bb835"}, {"url": "https://git.kernel.org/stable/c/3cef33b9813b78f227942572fb317afcd5c9ac94"}, {"url": "https://git.kernel.org/stable/c/87828b380956d4986f59f2c086e0b09b3e6cdaae"}, {"url": "https://git.kernel.org/stable/c/527057ebe8076dfbcaef51195ff1b7508646be2c"}, {"url": "https://git.kernel.org/stable/c/66d9fab4565eafe1afe7ba0581f79b76073b60fa"}, {"url": "https://git.kernel.org/stable/c/4d328dd695383224aa750ddee6b4ad40c0f8d205"}], "title": "bpf, sockmap: Fix af_unix iter deadlock", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{"bugzilla": {"description": "kernel: bpf, sockmap: Fix af_unix iter deadlock", "id": "2492357", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492357"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-833", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf, sockmap: Fix af_unix iter deadlock\nbpf_iter_unix_seq_show() may deadlock when lock_sock_fast() takes the fast\npath and the iter prog attempts to update a sockmap. Which ends up spinning\nat sock_map_update_elem()'s bh_lock_sock():\nWARNING: possible recursive locking detected\ntest_progs/1393 is trying to acquire lock:\nffff88811ec25f58 (slock-AF_UNIX){+...}-{3:3}, at: sock_map_update_elem+0xdb/0x1f0\nbut task is already holding lock:\nffff88811ec25f58 (slock-AF_UNIX){+...}-{3:3}, at: __lock_sock_fast+0x37/0xe0\nother info that might help us debug this:\nPossible unsafe locking scenario:\nCPU0\n----\nlock(slock-AF_UNIX);\nlock(slock-AF_UNIX);\n*** DEADLOCK ***\nMay be due to missing lock nesting notation\n4 locks held by test_progs/1393:\n#0: ffff88814b59c790 (&p->lock){+.+.}-{4:4}, at: bpf_seq_read+0x59/0x10d0\n#1: ffff88811ec25fd8 (sk_lock-AF_UNIX){+.+.}-{0:0}, at: bpf_seq_read+0x42c/0x10d0\n#2: ffff88811ec25f58 (slock-AF_UNIX){+...}-{3:3}, at: __lock_sock_fast+0x37/0xe0\n#3: ffffffff85a6a7c0 (rcu_read_lock){....}-{1:3}, at: bpf_iter_run_prog+0x51d/0xb00\nCall Trace:\ndump_stack_lvl+0x5d/0x80\nprint_deadlock_bug.cold+0xc0/0xce\n__lock_acquire+0x130f/0x2590\nlock_acquire+0x14e/0x2b0\n_raw_spin_lock+0x30/0x40\nsock_map_update_elem+0xdb/0x1f0\nbpf_prog_2d0075e5d9b721cd_dump_unix+0x55/0x4f4\nbpf_iter_run_prog+0x5b9/0xb00\nbpf_iter_unix_seq_show+0x1f7/0x2e0\nbpf_seq_read+0x42c/0x10d0\nvfs_read+0x171/0xb20\nksys_read+0xff/0x200\ndo_syscall_64+0x6b/0x3a0\nentry_SYSCALL_64_after_hwframe+0x76/0x7e", "A flaw was found in the Linux kernel's Berkeley Packet Filter (BPF) sockmap component. A deadlock can occur in the `bpf_iter_unix_seq_show()` function when an iterator program attempts to update a sockmap while a lock is already held. This recursive locking scenario can lead to a system freeze or unresponsiveness, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-53035", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53035\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53035\nhttps://lore.kernel.org/linux-cve-announce/2026062455-CVE-2026-53035-1c5a@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2c860a43dd77f969bb959336a2f743d7103a8f63,bd3592129f24243713673a07225cf1f15a9bb835)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2c860a43dd77f969bb959336a2f743d7103a8f63,3cef33b9813b78f227942572fb317afcd5c9ac94)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2c860a43dd77f969bb959336a2f743d7103a8f63,87828b380956d4986f59f2c086e0b09b3e6cdaae)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2c860a43dd77f969bb959336a2f743d7103a8f63,527057ebe8076dfbcaef51195ff1b7508646be2c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2c860a43dd77f969bb959336a2f743d7103a8f63,66d9fab4565eafe1afe7ba0581f79b76073b60fa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2c860a43dd77f969bb959336a2f743d7103a8f63,4d328dd695383224aa750ddee6b4ad40c0f8d205)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.175,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.141,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T19:45:05.747913+00:00", "updated": "2026-06-27T01:45:09.254659+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-368", "CWE-833"]}