CVE-2024-44938
Published: August 28, 2024Last modified: August 28, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: jfs: Fix shift-out-of-bounds in dbDiscardAG When searching for the next smaller log2 block, BLKSTOL2() returned 0, causing shift exponent -1 to be negative. This patch fixes the issue by exiting the loop directly when negative shift is found.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.110-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/234e6ea0855cdb5673d54ecaf7dc5c78f3e84630
- https://git.kernel.org/stable/c/4de2c04c3acd5b84f50b0d2f8f09e9b2f42374b9
- https://git.kernel.org/stable/c/7063b80268e2593e58bee8a8d709c2f3ff93e2f2
- https://git.kernel.org/stable/c/bb7c605a754823b86dd74f6537ccb9d38a9dec5a
- https://git.kernel.org/stable/c/bd04a149e3a29e7f71b7956ed41dba34e42d539e
- https://git.kernel.org/stable/c/f650148b43949ca9e37e820804bb6026fff404f3