7.1

CVE-2024-49900: linux Use of Uninitialized Resource

CVSS: 7.1v3.1HighModified
AliasesUBUNTU-CVE-2024-49900DEBIAN-CVE-2024-49900
Published 21-10-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2024-49900 is a high (CVSS 7.1) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 48 · Related 46
DLA-4008-1DLA-4075-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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().

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

0.00 pp

From 0.28% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu135 products
  • linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-127.137 | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1073.79 | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7b24d41d47a6805c45378debf8bd115675d41da8 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < dac398ed272a378d2f42ac68ae408333a51baf52 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8b1dcf25c26d42e4a68c4725ce52a0543c7878cc | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d7444f91a9f93eaa48827087ed0f3381c194181d | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6041536d18c5f51a84bc37cd568cbab61870031e | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c076b3746224982eebdba5c9e4b1467e146c0d64 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7c244d5b48284a770d96ff703df2dfeadf804a73 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8ad8b531de79c348bcb8133e7f5e827b884226af | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2b59ffad47db1c46af25ccad157bb3b25147c35c | 2.6.12
  • linux_kernel< 5.10.227 | ≥ 5.11, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.55 | ≥ 6.7, < 6.10.14 | ≥ 6.11, < 6.11.3
Debian1 product
  • linux< 6.1.115-1 | < 6.11.4-1

3 vendors · 138 products

References

51 links
Show all 51 references