CVE-2024-50265 (GCVE-0-2024-50265)
Vulnerability from cvelistv5 – Published: 2024-11-19 01:30 – Updated: 2026-05-11 20:48
VLAI
EPSS
VEX
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)
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
10 references
Impacted products
2 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) |
guessed | |
| 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) |
guessed |
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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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"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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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- 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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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