7.1

CVE-2024-49900

jfs: Fix uninit-value access of new_ea in ea_buffer

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().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.10.227
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.168
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.113
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.55
Linux ≫ Linux Kernel Version >= 6.7 < 6.10.14
Linux ≫ Linux Kernel Version >= 6.11 < 6.11.3
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.194
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-908 Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

https://git.kernel.org/stable/c/2b59ffad47db1c46af25ccad157bb3b25147c35c
Patch
https://git.kernel.org/stable/c/6041536d18c5f51a84bc37cd568cbab61870031e
Patch
https://git.kernel.org/stable/c/7b24d41d47a6805c45378debf8bd115675d41da8
https://git.kernel.org/stable/c/7c244d5b48284a770d96ff703df2dfeadf804a73
Patch
https://git.kernel.org/stable/c/8ad8b531de79c348bcb8133e7f5e827b884226af
Patch
https://git.kernel.org/stable/c/8b1dcf25c26d42e4a68c4725ce52a0543c7878cc
Patch
https://git.kernel.org/stable/c/c076b3746224982eebdba5c9e4b1467e146c0d64
Patch
https://git.kernel.org/stable/c/d7444f91a9f93eaa48827087ed0f3381c194181d
Patch
https://git.kernel.org/stable/c/dac398ed272a378d2f42ac68ae408333a51baf52
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
https://cert-portal.siemens.com/productcert/html/ssa-355557.html