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Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package perf  (opens in a new tab)

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EPSS
0.09% (1st percentile)

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  • Snyk IDSNYK-RHEL10-PERF-16463242
  • published7 May 2026
  • disclosed6 May 2026
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Introduced: 6 May 2026

CVE-2026-43163  (opens in a new tab)
CWE-825  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.

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

md/bitmap: fix GPF in write_page caused by resize race

A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b/0x3c0 [md_mod]

This is a use-after-free race between bitmap_daemon_work() and __bitmap_resize(). The daemon iterates over bitmap->storage.filemap without locking, while the resize path frees that storage via md_bitmap_file_unmap(). quiesce() does not stop the md thread, allowing concurrent access to freed pages.

Fix by holding mddev->bitmap_info.mutex during the bitmap update.