CVE-2024-49900jfs: Fix uninit-value access of new_ea in ea_buffer
- 7.1HighCVSS base score
- 0.28%Exploitation in 30 daysEPSS · top 79% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of new_ea in ea_buffer syzbot reports that lzo1x_1_do_compress is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178 ... Uninit was stored to memory at: ea_put fs/jfs/xattr.c:639 [inline] ... Local variable ea_buf created at: __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662 __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934 ===================================================== The reason is ea_buf->new_ea is not initialized properly. Fix this by using memset to empty its content at the beginning in ea_get().
Timeline
ID reserved
By Linux
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.28% · top 79% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 7b24d41d47a6805c45378debf8bd115675d41da8
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < dac398ed272a378d2f42ac68ae408333a51baf52
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 8b1dcf25c26d42e4a68c4725ce52a0543c7878cc
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < d7444f91a9f93eaa48827087ed0f3381c194181d
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 6041536d18c5f51a84bc37cd568cbab61870031e
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < c076b3746224982eebdba5c9e4b1467e146c0d64
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 7c244d5b48284a770d96ff703df2dfeadf804a73
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 8ad8b531de79c348bcb8133e7f5e827b884226af
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 2b59ffad47db1c46af25ccad157bb3b25147c35c
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 4.19.323 – ≤ 4.19.*
- unaffected 5.4.285 – ≤ 5.4.*
- unaffected 5.10.227 – ≤ 5.10.*
- unaffected 5.15.168 – ≤ 5.15.*
- unaffected 6.1.113 – ≤ 6.1.*
- unaffected 6.6.55 – ≤ 6.6.*
- unaffected 6.10.14 – ≤ 6.10.*
- unaffected 6.11.3 – ≤ 6.11.*
- unaffected 6.12 – ≤ *
References
References13
- https://git.kernel.org/stable/c/7b24d41d47a6805c45378debf8bd115675d41da8 (opens in a new tab)
- https://git.kernel.org/stable/c/dac398ed272a378d2f42ac68ae408333a51baf52 (opens in a new tab)
- https://git.kernel.org/stable/c/8b1dcf25c26d42e4a68c4725ce52a0543c7878cc (opens in a new tab)
- https://git.kernel.org/stable/c/d7444f91a9f93eaa48827087ed0f3381c194181d (opens in a new tab)
- https://git.kernel.org/stable/c/6041536d18c5f51a84bc37cd568cbab61870031e (opens in a new tab)
- https://git.kernel.org/stable/c/c076b3746224982eebdba5c9e4b1467e146c0d64 (opens in a new tab)
- https://git.kernel.org/stable/c/7c244d5b48284a770d96ff703df2dfeadf804a73 (opens in a new tab)
- https://git.kernel.org/stable/c/8ad8b531de79c348bcb8133e7f5e827b884226af (opens in a new tab)
- https://git.kernel.org/stable/c/2b59ffad47db1c46af25ccad157bb3b25147c35c (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-43596 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-49900)Record last updated .