CVE-2024-44938: jfs: Fix shift-out-of-bounds in dbDiscardAG
First published: Mon Aug 26 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.6.47 | |
| Linux Linux kernel | >=6.7<6.10.6 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/stable/c/234e6ea0855cdb5673d54ecaf7dc5c78f3e84630
- https://git.kernel.org/stable/c/7063b80268e2593e58bee8a8d709c2f3ff93e2f2
- https://git.kernel.org/stable/c/bd04a149e3a29e7f71b7956ed41dba34e42d539e
- https://git.kernel.org/stable/c/f650148b43949ca9e37e820804bb6026fff404f3
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-44938
- https://nvd.nist.gov/vuln/detail/CVE-2024-44938
- https://launchpad.net/bugs/cve/CVE-2024-44938
- https://security-tracker.debian.org/tracker/CVE-2024-44938
- https://ubuntu.com/security/CVE-2024-44938
- https://git.kernel.org/linus/7063b80268e2593e58bee8a8d709c2f3ff93e2f2
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