🛡️ AZL-78470 — kernel

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-22991 affecting package kernel for versions less than 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved:

libceph: make free_choose_arg_map() resilient to partial allocation

free_choose_arg_map() may dereference a NULL pointer if its caller fails

after a partial allocation.

For example, in decode_choose_args(), if allocation of arg_map->args

fails, execution jumps to the fail label and free_choose_arg_map() is

called. Since arg_map->size is updated to a non-zero value before memory

allocation, free_choose_arg_map() will iterate over arg_map->args and

dereference a NULL pointer.

To prevent this potential NULL pointer dereference and make

free_choose_arg_map() more resilient, add checks for pointers before

iterating.

Affected software

AZL-78470 is recorded against 1 package.

  • kernel (fixed in 5.15.200.1-1)

Timeline and source

Published on 23 January 2026 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-01-23
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — 5.15.200.1-1

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