CVE-2026-43163
MEDIUM
MEDIUM
Priority: 0.00
BB Relevance:
24/100
Published: 2026-05-06
Modified: 2026-11-11
First seen: 2026-11-06
Status: active
Attack Surface
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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.
Weakness Classification (1)
Affected Software (10)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 140cc839fbeb1ddb33a8da8811b716d88d3905b7 |
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8 |
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < d3af62411e19752c663fe4f424dbf49d95a4cc7c |
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < d92b8fac294b5f915c50e65ce4ae2262e53614ec |
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < a437e3bf30e32846079e470c1ba5ee790bccdf89 |
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f |
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 5f73c8b33df9a605a591eab72d43a969600c1f8c |
| Linux | Linux | d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 46ef85f854dfa9d5226b3c1c46493d79556c9589 |
| Linux | Linux | 3.5 |
| linux | linux_kernel | 3.5 – 5.10.252 |