AZL-51485
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-51485.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-51485
- Upstream
- Published
- 2024-10-21T18:15:12Z
- Modified
- 2026-04-01T05:16:25.176100Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- CVE-2024-49900 affecting package kernel for versions less than 5.15.173.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
jfs: Fix uninit-value access of newea in eabuffer
syzbot reports that lzo1x1do_compress is using uninit-value:
===================================================== BUG: KMSAN: uninit-value in lzo1x1docompress+0x19f9/0x2510 lib/lzo/lzo1xcompress.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 __jfsxattrset+0xe6/0x1f0 fs/jfs/xattr.c:934
=====================================================
The reason is eabuf->newea is not initialized properly.
Fix this by using memset to empty its content at the beginning in ea_get().
- References