jfs: Fix uninit-value access of new_ea in ea_buffer (Linux Linux)

CVE-2024-49900
HIGH 7.1

At a glance

Source
NVD
EPSS
EPSS 0.28 % · percentile 20 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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().

Weaknesses (CWE)

  • CWE-908 — Use of Uninitialized Resource

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7b24d41d47a6805c45378debf8bd115675d41da8 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < dac398ed272a378d2f42ac68ae408333a51baf52 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8b1dcf25c26d42e4a68c4725ce52a0543c7878cc ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d7444f91a9f93eaa48827087ed0f3381c194181d ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6041536d18c5f51a84bc37cd568cbab61870031e ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c076b3746224982eebdba5c9e4b1467e146c0d64
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 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.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD