CVE-2024-56692

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-56692", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T15:00:39.849Z", "datePublished": "2024-12-28T09:46:17.539Z", "dateUpdated": "2026-10-30T12:20:25.681Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:20:25.681Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on node blkaddr in truncate_node()\n\nsyzbot reports a f2fs bug as below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/segment.c:2534!\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\nCall Trace:\n truncate_node+0x1ae/0x8c0 fs/f2fs/node.c:909\n f2fs_remove_inode_page+0x5c2/0x870 fs/f2fs/node.c:1288\n f2fs_evict_inode+0x879/0x15c0 fs/f2fs/inode.c:856\n evict+0x4e8/0x9b0 fs/inode.c:723\n f2fs_handle_failed_inode+0x271/0x2e0 fs/f2fs/inode.c:986\n f2fs_create+0x357/0x530 fs/f2fs/namei.c:394\n lookup_open fs/namei.c:3595 [inline]\n open_last_lookups fs/namei.c:3694 [inline]\n path_openat+0x1c03/0x3590 fs/namei.c:3930\n do_filp_open+0x235/0x490 fs/namei.c:3960\n do_sys_openat2+0x13e/0x1d0 fs/open.c:1415\n do_sys_open fs/open.c:1430 [inline]\n __do_sys_openat fs/open.c:1446 [inline]\n __se_sys_openat fs/open.c:1441 [inline]\n __x64_sys_openat+0x247/0x2a0 fs/open.c:1441\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\n\nThe root cause is: on a fuzzed image, blkaddr in nat entry may be\ncorrupted, then it will cause system panic when using it in\nf2fs_invalidate_blocks(), to avoid this, let's add sanity check on\nnat blkaddr in truncate_node()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The attack requires a crafted f2fs image to be mounted on the local system and is then triggered through ordinary local filesystem syscalls (`openat`, `unlink`, `truncate`) reaching `truncate_node()`; no network protocol is involved.\nAC:L - The corrupted `block_addr` is a static, fully attacker-chosen field in the on-disk NAT journal that `remove_nats_in_journal()` copies into the NAT cache verbatim, so `truncate_node()` picks it up deterministically on every node truncation \u2014 no race, no timing window, and no dependence on memory layout the attacker cannot influence.\nPR:L - Once the malicious volume is mounted \u2014 automatically by udisks2 on desktops/kiosks or by vold for Android SD-card/adoptable storage, since f2fs is Android's primary filesystem \u2014 any unprivileged user with access to the mount triggers the path with a plain file create, unlink, or truncate; no capability check stands between that user and `truncate_node()`.\nUI:N - The attacker performs both halves of the attack: the volume is mounted automatically on media insertion by the automounter, and the trigger is the attacker's own ordinary file operation, requiring no action by any victim.\nS:U - The out-of-bounds accesses and the resulting corruption are confined to kernel memory of the same machine; no VM, IOMMU, or other security-authority boundary is crossed.\nC:H - `get_seg_entry()` indexes `sit_i->sentries[]` with an unbounded `segno` derived from the attacker's 32-bit blkaddr and performs no bounds check, so `update_segment_mtime()`/`update_sit_entry()` read `struct seg_entry` fields \u2014 including the `cur_valid_map`/`ckpt_valid_map`/`discard_map` pointers \u2014 from arbitrary kernel memory far outside the array.\nI:H - The same unbounded index produces out-of-bounds writes to `se->mtime`, `se->valid_blocks`, the `dirty_sentries_bitmap` bit set by `__mark_sit_entry_dirty()`, and `get_sec_entry()->valid_blocks`, plus a bit-clear performed through `se->cur_valid_map` \u2014 a pointer that was itself read out of bounds \u2014 giving a wild-pointer write primitive suitable for control-flow hijacking.\nA:H - The reported symptom is an outright kernel panic at `f2fs_bug_on(sbi, addr == NULL_ADDR)` in `f2fs_invalidate_blocks()` (`BUG_ON` under `CONFIG_F2FS_CHECK_FS`, `WARN_ON` elsewhere, fatal with `panic_on_warn`), and the out-of-bounds pointer dereferences oops the kernel independently."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/f2fs/node.c"], "versions": [{"version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "a6d51de6bf729edc9fc7f87ffaae4e6bbda6329a", "status": "affected", "versionType": "git"}, {"version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "27d6e7eff07f8cce8e83b162d8f21a07458c860d", "status": "affected", "versionType": "git"}, {"version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "c1077078ce4589b5e5387f6b0aaa0d4534b9eb57", "status": "affected", "versionType": "git"}, {"version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "0a5c8b3fbf6200f1c66062d307c9a52084917788", "status": "affected", "versionType": "git"}, {"version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "6babe00ccd34fc65b78ef8b99754e32b4385f23d", "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/f2fs/node.c"], "versions": [{"version": "3.8", "status": "affected"}, {"version": "0", "lessThan": "3.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.64", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.11", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.2", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "3.8", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.6.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.11.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.12.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a6d51de6bf729edc9fc7f87ffaae4e6bbda6329a"}, {"url": "https://git.kernel.org/stable/c/27d6e7eff07f8cce8e83b162d8f21a07458c860d"}, {"url": "https://git.kernel.org/stable/c/c1077078ce4589b5e5387f6b0aaa0d4534b9eb57"}, {"url": "https://git.kernel.org/stable/c/0a5c8b3fbf6200f1c66062d307c9a52084917788"}, {"url": "https://git.kernel.org/stable/c/6babe00ccd34fc65b78ef8b99754e32b4385f23d"}], "title": "f2fs: fix to do sanity check on node blkaddr in truncate_node()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-56692", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T19:59:11.953057Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-754", "description": "CWE-754 Improper Check for Unusual or Exceptional Conditions"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:07:08.292Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-56692", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T19:59:11.953057Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-754", "description": "CWE-754 Improper Check for Unusual or Exceptional Conditions"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T15:46:42.625Z"}}], "cna": {"title": "f2fs: fix to do sanity check on node blkaddr in truncate_node()", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The attack requires a crafted f2fs image to be mounted on the local system and is then triggered through ordinary local filesystem syscalls (`openat`, `unlink`, `truncate`) reaching `truncate_node()`; no network protocol is involved.\nAC:L - The corrupted `block_addr` is a static, fully attacker-chosen field in the on-disk NAT journal that `remove_nats_in_journal()` copies into the NAT cache verbatim, so `truncate_node()` picks it up deterministically on every node truncation \u2014 no race, no timing window, and no dependence on memory layout the attacker cannot influence.\nPR:L - Once the malicious volume is mounted \u2014 automatically by udisks2 on desktops/kiosks or by vold for Android SD-card/adoptable storage, since f2fs is Android's primary filesystem \u2014 any unprivileged user with access to the mount triggers the path with a plain file create, unlink, or truncate; no capability check stands between that user and `truncate_node()`.\nUI:N - The attacker performs both halves of the attack: the volume is mounted automatically on media insertion by the automounter, and the trigger is the attacker's own ordinary file operation, requiring no action by any victim.\nS:U - The out-of-bounds accesses and the resulting corruption are confined to kernel memory of the same machine; no VM, IOMMU, or other security-authority boundary is crossed.\nC:H - `get_seg_entry()` indexes `sit_i->sentries[]` with an unbounded `segno` derived from the attacker's 32-bit blkaddr and performs no bounds check, so `update_segment_mtime()`/`update_sit_entry()` read `struct seg_entry` fields \u2014 including the `cur_valid_map`/`ckpt_valid_map`/`discard_map` pointers \u2014 from arbitrary kernel memory far outside the array.\nI:H - The same unbounded index produces out-of-bounds writes to `se->mtime`, `se->valid_blocks`, the `dirty_sentries_bitmap` bit set by `__mark_sit_entry_dirty()`, and `get_sec_entry()->valid_blocks`, plus a bit-clear performed through `se->cur_valid_map` \u2014 a pointer that was itself read out of bounds \u2014 giving a wild-pointer write primitive suitable for control-flow hijacking.\nA:H - The reported symptom is an outright kernel panic at `f2fs_bug_on(sbi, addr == NULL_ADDR)` in `f2fs_invalidate_blocks()` (`BUG_ON` under `CONFIG_F2FS_CHECK_FS`, `WARN_ON` elsewhere, fatal with `panic_on_warn`), and the out-of-bounds pointer dereferences oops the kernel independently."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "a6d51de6bf729edc9fc7f87ffaae4e6bbda6329a", "versionType": "git"}, {"status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "27d6e7eff07f8cce8e83b162d8f21a07458c860d", "versionType": "git"}, {"status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "c1077078ce4589b5e5387f6b0aaa0d4534b9eb57", "versionType": "git"}, {"status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "0a5c8b3fbf6200f1c66062d307c9a52084917788", "versionType": "git"}, {"status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "lessThan": "6babe00ccd34fc65b78ef8b99754e32b4385f23d", "versionType": "git"}], "programFiles": ["fs/f2fs/node.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.8"}, {"status": "unaffected", "version": "0", "lessThan": "3.8", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.64", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.11.11", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12.2", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/f2fs/node.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/a6d51de6bf729edc9fc7f87ffaae4e6bbda6329a"}, {"url": "https://git.kernel.org/stable/c/27d6e7eff07f8cce8e83b162d8f21a07458c860d"}, {"url": "https://git.kernel.org/stable/c/c1077078ce4589b5e5387f6b0aaa0d4534b9eb57"}, {"url": "https://git.kernel.org/stable/c/0a5c8b3fbf6200f1c66062d307c9a52084917788"}, {"url": "https://git.kernel.org/stable/c/6babe00ccd34fc65b78ef8b99754e32b4385f23d"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on node blkaddr in truncate_node()\n\nsyzbot reports a f2fs bug as below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/segment.c:2534!\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\nCall Trace:\n truncate_node+0x1ae/0x8c0 fs/f2fs/node.c:909\n f2fs_remove_inode_page+0x5c2/0x870 fs/f2fs/node.c:1288\n f2fs_evict_inode+0x879/0x15c0 fs/f2fs/inode.c:856\n evict+0x4e8/0x9b0 fs/inode.c:723\n f2fs_handle_failed_inode+0x271/0x2e0 fs/f2fs/inode.c:986\n f2fs_create+0x357/0x530 fs/f2fs/namei.c:394\n lookup_open fs/namei.c:3595 [inline]\n open_last_lookups fs/namei.c:3694 [inline]\n path_openat+0x1c03/0x3590 fs/namei.c:3930\n do_filp_open+0x235/0x490 fs/namei.c:3960\n do_sys_openat2+0x13e/0x1d0 fs/open.c:1415\n do_sys_open fs/open.c:1430 [inline]\n __do_sys_openat fs/open.c:1446 [inline]\n __se_sys_openat fs/open.c:1441 [inline]\n __x64_sys_openat+0x247/0x2a0 fs/open.c:1441\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\n\nThe root cause is: on a fuzzed image, blkaddr in nat entry may be\ncorrupted, then it will cause system panic when using it in\nf2fs_invalidate_blocks(), to avoid this, let's add sanity check on\nnat blkaddr in truncate_node()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.191", "versionStartIncluding": "3.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.64", "versionStartIncluding": "3.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11.11", "versionStartIncluding": "3.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.2", "versionStartIncluding": "3.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13", "versionStartIncluding": "3.8"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:20:25.681Z"}}}, "cveMetadata": {"cveId": "CVE-2024-56692", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:20:25.681Z", "dateReserved": "2024-12-27T15:00:39.849Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-12-28T09:46:17.539Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/f2fs/node.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a6d51de6bf729edc9fc7f87ffaae4e6bbda6329a", "status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "versionType": "git"}, {"lessThan": "27d6e7eff07f8cce8e83b162d8f21a07458c860d", "status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "versionType": "git"}, {"lessThan": "c1077078ce4589b5e5387f6b0aaa0d4534b9eb57", "status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "versionType": "git"}, {"lessThan": "0a5c8b3fbf6200f1c66062d307c9a52084917788", "status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "versionType": "git"}, {"lessThan": "6babe00ccd34fc65b78ef8b99754e32b4385f23d", "status": "affected", "version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/f2fs/node.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.8"}, {"lessThan": "3.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.64", "versionType": "semver"}, {"lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.11", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "523573B1-32B0-4CEF-A666-DC2DA3D85104", "versionEndExcluding": "6.6.64", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "21434379-192D-472F-9B54-D45E3650E893", "versionEndExcluding": "6.11.11", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8882B1B-2ABC-4838-AC1D-DBDBB5764776", "versionEndExcluding": "6.12.2", "versionStartIncluding": "6.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on node blkaddr in truncate_node()\n\nsyzbot reports a f2fs bug as below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/segment.c:2534!\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\nCall Trace:\n truncate_node+0x1ae/0x8c0 fs/f2fs/node.c:909\n f2fs_remove_inode_page+0x5c2/0x870 fs/f2fs/node.c:1288\n f2fs_evict_inode+0x879/0x15c0 fs/f2fs/inode.c:856\n evict+0x4e8/0x9b0 fs/inode.c:723\n f2fs_handle_failed_inode+0x271/0x2e0 fs/f2fs/inode.c:986\n f2fs_create+0x357/0x530 fs/f2fs/namei.c:394\n lookup_open fs/namei.c:3595 [inline]\n open_last_lookups fs/namei.c:3694 [inline]\n path_openat+0x1c03/0x3590 fs/namei.c:3930\n do_filp_open+0x235/0x490 fs/namei.c:3960\n do_sys_openat2+0x13e/0x1d0 fs/open.c:1415\n do_sys_open fs/open.c:1430 [inline]\n __do_sys_openat fs/open.c:1446 [inline]\n __se_sys_openat fs/open.c:1441 [inline]\n __x64_sys_openat+0x247/0x2a0 fs/open.c:1441\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\n\nThe root cause is: on a fuzzed image, blkaddr in nat entry may be\ncorrupted, then it will cause system panic when using it in\nf2fs_invalidate_blocks(), to avoid this, let's add sanity check on\nnat blkaddr in truncate_node()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: correcci\u00f3n para realizar una comprobaci\u00f3n de cordura en el nodo blkaddr en truncate_node() syzbot informa un error de f2fs como se muestra a continuaci\u00f3n: ------------[ cortar aqu\u00ed ]------------ \u00a1ERROR del kernel en fs/f2fs/segment.c:2534! RIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534 Seguimiento de llamadas: truncate_node+0x1ae/0x8c0 fs/f2fs/node.c:909 f2fs_remove_inode_page+0x5c2/0x870 fs/f2fs/node.c:1288 f2fs_evict_inode+0x879/0x15c0 fs/f2fs/inode.c:856 evict+0x4e8/0x9b0 fs/inode.c:723 f2fs_handle_failed_inode+0x271/0x2e0 fs/f2fs/inode.c:986 f2fs_create+0x357/0x530 fs/f2fs/namei.c:394 lookup_open fs/namei.c:3595 [en l\u00ednea] open_last_lookups fs/namei.c:3694 [en l\u00ednea] path_openat+0x1c03/0x3590 fs/namei.c:3930 do_filp_open+0x235/0x490 fs/namei.c:3960 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415 do_sys_open fs/open.c:1430 [en l\u00ednea] __do_sys_openat fs/open.c:1446 [en l\u00ednea] __se_sys_openat fs/open.c:1441 [en l\u00ednea] __x64_sys_openat+0x247/0x2a0 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534 La causa ra\u00edz es: en una imagen con errores, blkaddr en la entrada nat puede estar da\u00f1ado, luego causar\u00e1 un p\u00e1nico del sistema al usarlo en f2fs_invalidate_blocks(), para evitar esto, agreguemos una verificaci\u00f3n de cordura en nat blkaddr en truncar_nodo()."}], "id": "CVE-2024-56692", "lastModified": "2026-10-30T13:17:48.113", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-56692", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:59:11.953057Z", "version": "2.0.3"}}]}, "published": "2024-12-28T10:15:14.490", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0a5c8b3fbf6200f1c66062d307c9a52084917788"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/27d6e7eff07f8cce8e83b162d8f21a07458c860d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6babe00ccd34fc65b78ef8b99754e32b4385f23d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6d51de6bf729edc9fc7f87ffaae4e6bbda6329a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c1077078ce4589b5e5387f6b0aaa0d4534b9eb57"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-754"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: f2fs: fix to do sanity check on node blkaddr in truncate_node()", "id": "2334690", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334690"}, "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-754", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nf2fs: fix to do sanity check on node blkaddr in truncate_node()\nsyzbot reports a f2fs bug as below:\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/segment.c:2534!\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\nCall Trace:\ntruncate_node+0x1ae/0x8c0 fs/f2fs/node.c:909\nf2fs_remove_inode_page+0x5c2/0x870 fs/f2fs/node.c:1288\nf2fs_evict_inode+0x879/0x15c0 fs/f2fs/inode.c:856\nevict+0x4e8/0x9b0 fs/inode.c:723\nf2fs_handle_failed_inode+0x271/0x2e0 fs/f2fs/inode.c:986\nf2fs_create+0x357/0x530 fs/f2fs/namei.c:394\nlookup_open fs/namei.c:3595 [inline]\nopen_last_lookups fs/namei.c:3694 [inline]\npath_openat+0x1c03/0x3590 fs/namei.c:3930\ndo_filp_open+0x235/0x490 fs/namei.c:3960\ndo_sys_openat2+0x13e/0x1d0 fs/open.c:1415\ndo_sys_open fs/open.c:1430 [inline]\n__do_sys_openat fs/open.c:1446 [inline]\n__se_sys_openat fs/open.c:1441 [inline]\n__x64_sys_openat+0x247/0x2a0 fs/open.c:1441\ndo_syscall_x64 arch/x86/entry/common.c:52 [inline]\ndo_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\nentry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0010:f2fs_invalidate_blocks+0x35f/0x370 fs/f2fs/segment.c:2534\nThe root cause is: on a fuzzed image, blkaddr in nat entry may be\ncorrupted, then it will cause system panic when using it in\nf2fs_invalidate_blocks(), to avoid this, let's add sanity check on\nnat blkaddr in truncate_node()."], "name": "CVE-2024-56692", "package_state": [{"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56692\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56692\nhttps://lore.kernel.org/linux-cve-announce/2024122835-CVE-2024-56692-e6ad@gregkh/T"], "threat_severity": "Moderate"}

{}