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().
References (11)
Scores
CVSS v3
7.1
EPSS
0.0001
EPSS Percentile
0.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-908
Status
published
Products (9)
linux/Kernel
2.6.12 - 4.19.323linux
linux/Kernel
4.20.0 - 5.4.285linux
linux/Kernel
5.11.0 - 5.15.168linux
linux/Kernel
5.16.0 - 6.1.113linux
linux/Kernel
5.5.0 - 5.10.227linux
linux/Kernel
6.11.0 - 6.11.3linux
linux/Kernel
6.2.0 - 6.6.55linux
linux/Kernel
6.7.0 - 6.10.14linux
linux/linux_kernel
< 5.10.227
Published
Oct 21, 2024
Tracked Since
Feb 18, 2026