CVE-2024-50265 (GCVE-0-2024-50265)

Vulnerability from cvelistv5 – Published: 2024-11-19 01:30 – Updated: 2026-05-11 20:48
VLAI
Title
ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
Summary
In the Linux kernel, the following vulnerability has been resolved: ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove() Syzkaller is able to provoke null-ptr-dereference in ocfs2_xa_remove(): [ 57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12 [ 57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Partial truncate while removing xattr overlay.upper. Leaking 1 clusters and removing the entry [ 57.321727] BUG: kernel NULL pointer dereference, address: 0000000000000004 [...] [ 57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [...] [ 57.331328] Call Trace: [ 57.331477] <TASK> [...] [ 57.333511] ? do_user_addr_fault+0x3e5/0x740 [ 57.333778] ? exc_page_fault+0x70/0x170 [ 57.334016] ? asm_exc_page_fault+0x2b/0x30 [ 57.334263] ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10 [ 57.334596] ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [ 57.334913] ocfs2_xa_remove_entry+0x23/0xc0 [ 57.335164] ocfs2_xa_set+0x704/0xcf0 [ 57.335381] ? _raw_spin_unlock+0x1a/0x40 [ 57.335620] ? ocfs2_inode_cache_unlock+0x16/0x20 [ 57.335915] ? trace_preempt_on+0x1e/0x70 [ 57.336153] ? start_this_handle+0x16c/0x500 [ 57.336410] ? preempt_count_sub+0x50/0x80 [ 57.336656] ? _raw_read_unlock+0x20/0x40 [ 57.336906] ? start_this_handle+0x16c/0x500 [ 57.337162] ocfs2_xattr_block_set+0xa6/0x1e0 [ 57.337424] __ocfs2_xattr_set_handle+0x1fd/0x5d0 [ 57.337706] ? ocfs2_start_trans+0x13d/0x290 [ 57.337971] ocfs2_xattr_set+0xb13/0xfb0 [ 57.338207] ? dput+0x46/0x1c0 [ 57.338393] ocfs2_xattr_trusted_set+0x28/0x30 [ 57.338665] ? ocfs2_xattr_trusted_set+0x28/0x30 [ 57.338948] __vfs_removexattr+0x92/0xc0 [ 57.339182] __vfs_removexattr_locked+0xd5/0x190 [ 57.339456] ? preempt_count_sub+0x50/0x80 [ 57.339705] vfs_removexattr+0x5f/0x100 [...] Reproducer uses faultinject facility to fail ocfs2_xa_remove() -> ocfs2_xa_value_truncate() with -ENOMEM. In this case the comment mentions that we can return 0 if ocfs2_xa_cleanup_value_truncate() is going to wipe the entry anyway. But the following 'rc' check is wrong and execution flow do 'ocfs2_xa_remove_entry(loc);' twice: * 1st: in ocfs2_xa_cleanup_value_truncate(); * 2nd: returning back to ocfs2_xa_remove() instead of going to 'out'. Fix this by skipping the 2nd removal of the same entry and making syzkaller repro happy.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:15 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < 38cbf13b2e7a31362babe411f7c2c3c52cd2734b (git)
Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < 168a9b8303fcb0317db4c06b23ce1c0ce2af4e10 (git)
Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < 6a7e6dcf90fe7721d0863067b6ca9a9442134692 (git)
Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < dcc8fe8c83145041cb6c80cac21f6173a3ff0204 (git)
Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < 86dd0e8d42828923c68ad506933336bcd6f2317d (git)
Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < dd73c942eed76a014c7a5597e6926435274d2c4c (git)
Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < 2b5369528ee63c88371816178a05b5e664c87386 (git)
Affected: 399ff3a748cf4c8c853e96dd477153202636527b , < 0b63c0e01fba40e3992bc627272ec7b618ccaef7 (git)
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Linux Linux Affected: 2.6.34
Unaffected: 0 , < 2.6.34 (semver)
Unaffected: 4.19.324 , ≤ 4.19.* (semver)
Unaffected: 5.4.286 , ≤ 5.4.* (semver)
Unaffected: 5.10.230 , ≤ 5.10.* (semver)
Unaffected: 5.15.172 , ≤ 5.15.* (semver)
Unaffected: 6.1.117 , ≤ 6.1.* (semver)
Unaffected: 6.6.61 , ≤ 6.6.* (semver)
Unaffected: 6.11.8 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()\n\nSyzkaller is able to provoke null-ptr-dereference in ocfs2_xa_remove():\n\n[   57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12\n[   57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Partial truncate while removing xattr overlay.upper.  Leaking 1 clusters and removing the entry\n[   57.321727] BUG: kernel NULL pointer dereference, address: 0000000000000004\n[...]\n[   57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\n[...]\n[   57.331328] Call Trace:\n[   57.331477]  \u003cTASK\u003e\n[...]\n[   57.333511]  ? do_user_addr_fault+0x3e5/0x740\n[   57.333778]  ? exc_page_fault+0x70/0x170\n[   57.334016]  ? asm_exc_page_fault+0x2b/0x30\n[   57.334263]  ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10\n[   57.334596]  ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\n[   57.334913]  ocfs2_xa_remove_entry+0x23/0xc0\n[   57.335164]  ocfs2_xa_set+0x704/0xcf0\n[   57.335381]  ? _raw_spin_unlock+0x1a/0x40\n[   57.335620]  ? ocfs2_inode_cache_unlock+0x16/0x20\n[   57.335915]  ? trace_preempt_on+0x1e/0x70\n[   57.336153]  ? start_this_handle+0x16c/0x500\n[   57.336410]  ? preempt_count_sub+0x50/0x80\n[   57.336656]  ? _raw_read_unlock+0x20/0x40\n[   57.336906]  ? start_this_handle+0x16c/0x500\n[   57.337162]  ocfs2_xattr_block_set+0xa6/0x1e0\n[   57.337424]  __ocfs2_xattr_set_handle+0x1fd/0x5d0\n[   57.337706]  ? ocfs2_start_trans+0x13d/0x290\n[   57.337971]  ocfs2_xattr_set+0xb13/0xfb0\n[   57.338207]  ? dput+0x46/0x1c0\n[   57.338393]  ocfs2_xattr_trusted_set+0x28/0x30\n[   57.338665]  ? ocfs2_xattr_trusted_set+0x28/0x30\n[   57.338948]  __vfs_removexattr+0x92/0xc0\n[   57.339182]  __vfs_removexattr_locked+0xd5/0x190\n[   57.339456]  ? preempt_count_sub+0x50/0x80\n[   57.339705]  vfs_removexattr+0x5f/0x100\n[...]\n\nReproducer uses faultinject facility to fail ocfs2_xa_remove() -\u003e\nocfs2_xa_value_truncate() with -ENOMEM.\n\nIn this case the comment mentions that we can return 0 if\nocfs2_xa_cleanup_value_truncate() is going to wipe the entry\nanyway. But the following \u0027rc\u0027 check is wrong and execution flow do\n\u0027ocfs2_xa_remove_entry(loc);\u0027 twice:\n* 1st: in ocfs2_xa_cleanup_value_truncate();\n* 2nd: returning back to ocfs2_xa_remove() instead of going to \u0027out\u0027.\n\nFix this by skipping the 2nd removal of the same entry and making\nsyzkaller repro happy."
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    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"2.6.34\", \"versionEndExcluding\": \"4.19.324\", \"matchCriteriaId\": \"EC743DF1-1998-4233-B6BA-1299888DEAEA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.20\", \"versionEndExcluding\": \"5.4.286\", \"matchCriteriaId\": \"9952C897-8A61-4D4B-9D6D-7D063E9EA15E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.5\", \"versionEndExcluding\": \"5.10.230\", \"matchCriteriaId\": \"BF5B32D0-72C9-41C3-A0BB-D4946153C134\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.172\", \"matchCriteriaId\": \"88812664-4296-42AC-AE0F-ED71086C1BB1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"6.1.117\", \"matchCriteriaId\": \"0DD7F755-2F6B-4707-8973-78496AD5AA8E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.2\", \"versionEndExcluding\": \"6.6.61\", \"matchCriteriaId\": \"630ED7EB-C97E-4435-B884-1E309E40D6F3\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7\", \"versionEndExcluding\": \"6.11.8\", \"matchCriteriaId\": \"0BD000F7-3DAD-4DD3-8906-98EA1EC67E95\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"7F361E1D-580F-4A2D-A509-7615F73167A1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\", \"matchCriteriaId\": \"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\", \"matchCriteriaId\": \"E0F717D8-3014-4F84-8086-0124B2111379\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\", \"matchCriteriaId\": \"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*\", \"matchCriteriaId\": \"24B88717-53F5-42AA-9B72-14C707639E3F\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()\\n\\nSyzkaller is able to provoke null-ptr-dereference in ocfs2_xa_remove():\\n\\n[   57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12\\n[   57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Partial truncate while removing xattr overlay.upper.  Leaking 1 clusters and removing the entry\\n[   57.321727] BUG: kernel NULL pointer dereference, address: 0000000000000004\\n[...]\\n[   57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\\n[...]\\n[   57.331328] Call Trace:\\n[   57.331477]  \u003cTASK\u003e\\n[...]\\n[   57.333511]  ? do_user_addr_fault+0x3e5/0x740\\n[   57.333778]  ? exc_page_fault+0x70/0x170\\n[   57.334016]  ? asm_exc_page_fault+0x2b/0x30\\n[   57.334263]  ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10\\n[   57.334596]  ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\\n[   57.334913]  ocfs2_xa_remove_entry+0x23/0xc0\\n[   57.335164]  ocfs2_xa_set+0x704/0xcf0\\n[   57.335381]  ? _raw_spin_unlock+0x1a/0x40\\n[   57.335620]  ? ocfs2_inode_cache_unlock+0x16/0x20\\n[   57.335915]  ? trace_preempt_on+0x1e/0x70\\n[   57.336153]  ? start_this_handle+0x16c/0x500\\n[   57.336410]  ? preempt_count_sub+0x50/0x80\\n[   57.336656]  ? _raw_read_unlock+0x20/0x40\\n[   57.336906]  ? start_this_handle+0x16c/0x500\\n[   57.337162]  ocfs2_xattr_block_set+0xa6/0x1e0\\n[   57.337424]  __ocfs2_xattr_set_handle+0x1fd/0x5d0\\n[   57.337706]  ? ocfs2_start_trans+0x13d/0x290\\n[   57.337971]  ocfs2_xattr_set+0xb13/0xfb0\\n[   57.338207]  ? dput+0x46/0x1c0\\n[   57.338393]  ocfs2_xattr_trusted_set+0x28/0x30\\n[   57.338665]  ? ocfs2_xattr_trusted_set+0x28/0x30\\n[   57.338948]  __vfs_removexattr+0x92/0xc0\\n[   57.339182]  __vfs_removexattr_locked+0xd5/0x190\\n[   57.339456]  ? preempt_count_sub+0x50/0x80\\n[   57.339705]  vfs_removexattr+0x5f/0x100\\n[...]\\n\\nReproducer uses faultinject facility to fail ocfs2_xa_remove() -\u003e\\nocfs2_xa_value_truncate() with -ENOMEM.\\n\\nIn this case the comment mentions that we can return 0 if\\nocfs2_xa_cleanup_value_truncate() is going to wipe the entry\\nanyway. But the following \u0027rc\u0027 check is wrong and execution flow do\\n\u0027ocfs2_xa_remove_entry(loc);\u0027 twice:\\n* 1st: in ocfs2_xa_cleanup_value_truncate();\\n* 2nd: returning back to ocfs2_xa_remove() instead of going to \u0027out\u0027.\\n\\nFix this by skipping the 2nd removal of the same entry and making\\nsyzkaller repro happy.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ocfs2: eliminar la entrada una vez en lugar de la desreferencia ptr nula en ocfs2_xa_remove() Syzkaller puede provocar la desreferencia ptr nula en ocfs2_xa_remove(): [ 57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12 [ 57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Truncamiento parcial al eliminar xattr overlay.upper. Fuga de 1 cl\\u00faster y eliminaci\\u00f3n de la entrada [ 57.321727] ERROR: desreferencia de puntero NULL del n\\u00facleo, direcci\\u00f3n: 0000000000000004 [...] [ 57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [...] [ 57.331328] Seguimiento de llamadas: [ 57.331477]  [...] [ 57.333511] ? do_user_addr_fault+0x3e5/0x740 [ 57.333778] ? exc_page_fault+0x70/0x170 [ 57.334016] ? asm_exc_page_fault+0x2b/0x30 [ 57.334263] ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10 [ 57.334596] ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [ 57.334913] ocfs2_xa_remove_entry+0x23/0xc0 [ 57.335164] ocfs2_xa_set+0x704/0xcf0 [ 57.335381] ? _raw_spin_unlock+0x1a/0x40 [ 57.335620] ? ocfs2_inode_cache_unlock+0x16/0x20 [ 57.335915] ? trace_preempt_on+0x1e/0x70 [ 57.336153] ? start_this_handle+0x16c/0x500 [ 57.336410] ? preempt_count_sub+0x50/0x80 [ 57.336656] ? _raw_read_unlock+0x20/0x40 [ 57.336906] ? ocfs2_xattr_set_handle+0x1fd/0x5d0 [ 57.337706] ? ocfs2_start_trans+0x13d/0x290 [ 57.337971] ocfs2_xattr_set+0xb13/0xfb0 [ 57.338207] ? dput+0x46/0x1c0 [ 57.338393] ocfs2_xattr_trusted_set+0x28/0x30 [ 57.338665] ? ocfs2_xattr_trusted_set+0x28/0x30 [ 57.338948] __vfs_removexattr+0x92/0xc0 [ 57.339182] __vfs_removexattr_locked+0xd5/0x190 [ 57.339456] ? preempt_count_sub+0x50/0x80 [ 57.339705] vfs_removexattr+0x5f/0x100 [...] El reproductor utiliza la funci\\u00f3n faultinject para hacer que ocfs2_xa_remove() -\u0026gt; ocfs2_xa_value_truncate() falle con -ENOMEM. En este caso, el comentario menciona que podemos devolver 0 si ocfs2_xa_cleanup_value_truncate() va a borrar la entrada de todos modos. Pero la siguiente comprobaci\\u00f3n de \u0027rc\u0027 es incorrecta y el flujo de ejecuci\\u00f3n ejecuta \u0027ocfs2_xa_remove_entry(loc);\u0027 dos veces: * 1.\\u00aa: en ocfs2_xa_cleanup_value_truncate(); * 2.\\u00aa: regresa a ocfs2_xa_remove() en lugar de ir a \u0027out\u0027. Solucione esto omitiendo la segunda eliminaci\\u00f3n de la misma entrada y haciendo que syzkaller repro funcione correctamente.\"}]",
      "id": "CVE-2024-50265",
      "lastModified": "2024-11-21T19:28:00.687",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
      "published": "2024-11-19T02:16:28.310",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/0b63c0e01fba40e3992bc627272ec7b618ccaef7\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/168a9b8303fcb0317db4c06b23ce1c0ce2af4e10\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/2b5369528ee63c88371816178a05b5e664c87386\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/38cbf13b2e7a31362babe411f7c2c3c52cd2734b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/6a7e6dcf90fe7721d0863067b6ca9a9442134692\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/86dd0e8d42828923c68ad506933336bcd6f2317d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/dcc8fe8c83145041cb6c80cac21f6173a3ff0204\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/dd73c942eed76a014c7a5597e6926435274d2c4c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}]"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-19T01:11:17.000Z",
      "cve": "CVE-2024-50265",
      "id": "msrc_CVE-2024-50265",
      "initial_release_date": "2024-11-02T00:00:00.000Z",
      "product_status:fixed": "5",
      "product_status:known_affected": "5",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-50265.json",
      "version": "3"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50265\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-19T02:16:28.310\",\"lastModified\":\"2026-06-17T08:04:03.070\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()\\n\\nSyzkaller is able to provoke null-ptr-dereference in ocfs2_xa_remove():\\n\\n[   57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12\\n[   57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Partial truncate while removing xattr overlay.upper.  Leaking 1 clusters and removing the entry\\n[   57.321727] BUG: kernel NULL pointer dereference, address: 0000000000000004\\n[...]\\n[   57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\\n[...]\\n[   57.331328] Call Trace:\\n[   57.331477]  \u003cTASK\u003e\\n[...]\\n[   57.333511]  ? do_user_addr_fault+0x3e5/0x740\\n[   57.333778]  ? exc_page_fault+0x70/0x170\\n[   57.334016]  ? asm_exc_page_fault+0x2b/0x30\\n[   57.334263]  ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10\\n[   57.334596]  ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\\n[   57.334913]  ocfs2_xa_remove_entry+0x23/0xc0\\n[   57.335164]  ocfs2_xa_set+0x704/0xcf0\\n[   57.335381]  ? _raw_spin_unlock+0x1a/0x40\\n[   57.335620]  ? ocfs2_inode_cache_unlock+0x16/0x20\\n[   57.335915]  ? trace_preempt_on+0x1e/0x70\\n[   57.336153]  ? start_this_handle+0x16c/0x500\\n[   57.336410]  ? preempt_count_sub+0x50/0x80\\n[   57.336656]  ? _raw_read_unlock+0x20/0x40\\n[   57.336906]  ? start_this_handle+0x16c/0x500\\n[   57.337162]  ocfs2_xattr_block_set+0xa6/0x1e0\\n[   57.337424]  __ocfs2_xattr_set_handle+0x1fd/0x5d0\\n[   57.337706]  ? ocfs2_start_trans+0x13d/0x290\\n[   57.337971]  ocfs2_xattr_set+0xb13/0xfb0\\n[   57.338207]  ? dput+0x46/0x1c0\\n[   57.338393]  ocfs2_xattr_trusted_set+0x28/0x30\\n[   57.338665]  ? ocfs2_xattr_trusted_set+0x28/0x30\\n[   57.338948]  __vfs_removexattr+0x92/0xc0\\n[   57.339182]  __vfs_removexattr_locked+0xd5/0x190\\n[   57.339456]  ? preempt_count_sub+0x50/0x80\\n[   57.339705]  vfs_removexattr+0x5f/0x100\\n[...]\\n\\nReproducer uses faultinject facility to fail ocfs2_xa_remove() -\u003e\\nocfs2_xa_value_truncate() with -ENOMEM.\\n\\nIn this case the comment mentions that we can return 0 if\\nocfs2_xa_cleanup_value_truncate() is going to wipe the entry\\nanyway. But the following \u0027rc\u0027 check is wrong and execution flow do\\n\u0027ocfs2_xa_remove_entry(loc);\u0027 twice:\\n* 1st: in ocfs2_xa_cleanup_value_truncate();\\n* 2nd: returning back to ocfs2_xa_remove() instead of going to \u0027out\u0027.\\n\\nFix this by skipping the 2nd removal of the same entry and making\\nsyzkaller repro happy.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ocfs2: eliminar la entrada una vez en lugar de la desreferencia ptr nula en ocfs2_xa_remove() Syzkaller puede provocar la desreferencia ptr nula en ocfs2_xa_remove(): [ 57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12 [ 57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Truncamiento parcial al eliminar xattr overlay.upper. Fuga de 1 cl\u00faster y eliminaci\u00f3n de la entrada [ 57.321727] ERROR: desreferencia de puntero NULL del n\u00facleo, direcci\u00f3n: 0000000000000004 [...] [ 57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [...] [ 57.331328] Seguimiento de llamadas: [ 57.331477]  [...] [ 57.333511] ? do_user_addr_fault+0x3e5/0x740 [ 57.333778] ? exc_page_fault+0x70/0x170 [ 57.334016] ? asm_exc_page_fault+0x2b/0x30 [ 57.334263] ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10 [ 57.334596] ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [ 57.334913] ocfs2_xa_remove_entry+0x23/0xc0 [ 57.335164] ocfs2_xa_set+0x704/0xcf0 [ 57.335381] ? _raw_spin_unlock+0x1a/0x40 [ 57.335620] ? ocfs2_inode_cache_unlock+0x16/0x20 [ 57.335915] ? trace_preempt_on+0x1e/0x70 [ 57.336153] ? start_this_handle+0x16c/0x500 [ 57.336410] ? preempt_count_sub+0x50/0x80 [ 57.336656] ? _raw_read_unlock+0x20/0x40 [ 57.336906] ? ocfs2_xattr_set_handle+0x1fd/0x5d0 [ 57.337706] ? ocfs2_start_trans+0x13d/0x290 [ 57.337971] ocfs2_xattr_set+0xb13/0xfb0 [ 57.338207] ? dput+0x46/0x1c0 [ 57.338393] ocfs2_xattr_trusted_set+0x28/0x30 [ 57.338665] ? ocfs2_xattr_trusted_set+0x28/0x30 [ 57.338948] __vfs_removexattr+0x92/0xc0 [ 57.339182] __vfs_removexattr_locked+0xd5/0x190 [ 57.339456] ? preempt_count_sub+0x50/0x80 [ 57.339705] vfs_removexattr+0x5f/0x100 [...] El reproductor utiliza la funci\u00f3n faultinject para hacer que ocfs2_xa_remove() -\u0026gt; ocfs2_xa_value_truncate() falle con -ENOMEM. En este caso, el comentario menciona que podemos devolver 0 si ocfs2_xa_cleanup_value_truncate() va a borrar la entrada de todos modos. Pero la siguiente comprobaci\u00f3n de \u0027rc\u0027 es incorrecta y el flujo de ejecuci\u00f3n ejecuta \u0027ocfs2_xa_remove_entry(loc);\u0027 dos veces: * 1.\u00aa: en ocfs2_xa_cleanup_value_truncate(); * 2.\u00aa: regresa a ocfs2_xa_remove() en lugar de ir a \u0027out\u0027. Solucione esto omitiendo la segunda eliminaci\u00f3n de la misma entrada y haciendo que syzkaller repro funcione correctamente.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/ocfs2/xattr.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"38cbf13b2e7a31362babe411f7c2c3c52cd2734b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"168a9b8303fcb0317db4c06b23ce1c0ce2af4e10\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"6a7e6dcf90fe7721d0863067b6ca9a9442134692\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"dcc8fe8c83145041cb6c80cac21f6173a3ff0204\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"86dd0e8d42828923c68ad506933336bcd6f2317d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"dd73c942eed76a014c7a5597e6926435274d2c4c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"2b5369528ee63c88371816178a05b5e664c87386\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"399ff3a748cf4c8c853e96dd477153202636527b\",\"lessThan\":\"0b63c0e01fba40e3992bc627272ec7b618ccaef7\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/ocfs2/xattr.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.34\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.34\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.324\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.286\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.230\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.172\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.117\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.61\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.8\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-10-01T20:15:20.154823Z\",\"id\":\"CVE-2024-50265\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T10:46:30+00:00",
      "cve": "CVE-2024-50265",
      "id": "CVE-2024-50265",
      "initial_release_date": "2024-11-19T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-50265.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:42:50Z",
      "cve": "CVE-2024-50265",
      "id": "CVE-2024-50265",
      "initial_release_date": "2024-11-19T03:49:34Z",
      "product_status:known_affected": "665",
      "product_status:known_not_affected": "32",
      "product_status:recommended": "589",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-50265",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-50265.json",
      "version": "58"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:27:45.242Z\"}}, {\"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-2024-50265\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T20:15:20.154823Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:25:39.205Z\"}}], \"cna\": {\"title\": \"ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"38cbf13b2e7a31362babe411f7c2c3c52cd2734b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"168a9b8303fcb0317db4c06b23ce1c0ce2af4e10\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"6a7e6dcf90fe7721d0863067b6ca9a9442134692\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"dcc8fe8c83145041cb6c80cac21f6173a3ff0204\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"86dd0e8d42828923c68ad506933336bcd6f2317d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"dd73c942eed76a014c7a5597e6926435274d2c4c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"2b5369528ee63c88371816178a05b5e664c87386\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"399ff3a748cf4c8c853e96dd477153202636527b\", \"lessThan\": \"0b63c0e01fba40e3992bc627272ec7b618ccaef7\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/ocfs2/xattr.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.34\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.34\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.324\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.286\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.230\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.172\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.117\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.61\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/ocfs2/xattr.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/38cbf13b2e7a31362babe411f7c2c3c52cd2734b\"}, {\"url\": \"https://git.kernel.org/stable/c/168a9b8303fcb0317db4c06b23ce1c0ce2af4e10\"}, {\"url\": \"https://git.kernel.org/stable/c/6a7e6dcf90fe7721d0863067b6ca9a9442134692\"}, {\"url\": \"https://git.kernel.org/stable/c/dcc8fe8c83145041cb6c80cac21f6173a3ff0204\"}, {\"url\": \"https://git.kernel.org/stable/c/86dd0e8d42828923c68ad506933336bcd6f2317d\"}, {\"url\": \"https://git.kernel.org/stable/c/dd73c942eed76a014c7a5597e6926435274d2c4c\"}, {\"url\": \"https://git.kernel.org/stable/c/2b5369528ee63c88371816178a05b5e664c87386\"}, {\"url\": \"https://git.kernel.org/stable/c/0b63c0e01fba40e3992bc627272ec7b618ccaef7\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()\\n\\nSyzkaller is able to provoke null-ptr-dereference in ocfs2_xa_remove():\\n\\n[   57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12\\n[   57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Partial truncate while removing xattr overlay.upper.  Leaking 1 clusters and removing the entry\\n[   57.321727] BUG: kernel NULL pointer dereference, address: 0000000000000004\\n[...]\\n[   57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\\n[...]\\n[   57.331328] Call Trace:\\n[   57.331477]  \u003cTASK\u003e\\n[...]\\n[   57.333511]  ? do_user_addr_fault+0x3e5/0x740\\n[   57.333778]  ? exc_page_fault+0x70/0x170\\n[   57.334016]  ? asm_exc_page_fault+0x2b/0x30\\n[   57.334263]  ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10\\n[   57.334596]  ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0\\n[   57.334913]  ocfs2_xa_remove_entry+0x23/0xc0\\n[   57.335164]  ocfs2_xa_set+0x704/0xcf0\\n[   57.335381]  ? _raw_spin_unlock+0x1a/0x40\\n[   57.335620]  ? ocfs2_inode_cache_unlock+0x16/0x20\\n[   57.335915]  ? trace_preempt_on+0x1e/0x70\\n[   57.336153]  ? start_this_handle+0x16c/0x500\\n[   57.336410]  ? preempt_count_sub+0x50/0x80\\n[   57.336656]  ? _raw_read_unlock+0x20/0x40\\n[   57.336906]  ? start_this_handle+0x16c/0x500\\n[   57.337162]  ocfs2_xattr_block_set+0xa6/0x1e0\\n[   57.337424]  __ocfs2_xattr_set_handle+0x1fd/0x5d0\\n[   57.337706]  ? ocfs2_start_trans+0x13d/0x290\\n[   57.337971]  ocfs2_xattr_set+0xb13/0xfb0\\n[   57.338207]  ? dput+0x46/0x1c0\\n[   57.338393]  ocfs2_xattr_trusted_set+0x28/0x30\\n[   57.338665]  ? ocfs2_xattr_trusted_set+0x28/0x30\\n[   57.338948]  __vfs_removexattr+0x92/0xc0\\n[   57.339182]  __vfs_removexattr_locked+0xd5/0x190\\n[   57.339456]  ? preempt_count_sub+0x50/0x80\\n[   57.339705]  vfs_removexattr+0x5f/0x100\\n[...]\\n\\nReproducer uses faultinject facility to fail ocfs2_xa_remove() -\u003e\\nocfs2_xa_value_truncate() with -ENOMEM.\\n\\nIn this case the comment mentions that we can return 0 if\\nocfs2_xa_cleanup_value_truncate() is going to wipe the entry\\nanyway. But the following \u0027rc\u0027 check is wrong and execution flow do\\n\u0027ocfs2_xa_remove_entry(loc);\u0027 twice:\\n* 1st: in ocfs2_xa_cleanup_value_truncate();\\n* 2nd: returning back to ocfs2_xa_remove() instead of going to \u0027out\u0027.\\n\\nFix this by skipping the 2nd removal of the same entry and making\\nsyzkaller repro happy.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.324\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.286\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.230\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.172\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.117\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.61\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.8\", \"versionStartIncluding\": \"2.6.34\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"2.6.34\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:48:46.700Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50265\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:48:46.700Z\", \"dateReserved\": \"2024-10-21T19:36:19.982Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-19T01:30:00.861Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.