PT-2025-43077 · Linux+1 · Linux Kernel+1
Published
2022-10-18
·
Updated
2025-12-04
·
CVE-2022-50567
CVSS v2.0
6.0
Medium
| Vector | AV:L/AC:H/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw within the JFS filesystem implementation. A shift-out-of-bounds condition exists in the
dbAllocAG function due to a missing check on the bmp->db agl2size field. This field, if greater than 64, can trigger the issue. The fix involves adding a check for bmp->db agl2size within the dbMount function, as this field is utilized in multiple subsequent functions. The upper bound for this field is L2MAXL2SIZE - L2MAXAG. The error handling code within dbMount was also reorganized as part of the fix.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
Buffer Overflow
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Related Identifiers
Affected Products
Linux Kernel
Suse