Answer in brief
CVE-2026-43163 records a Unknown severity vulnerability in md/bitmap: fix GPF in write_page caused by resize race. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <140cc839fbeb1ddb33a8da8811b716d88d3905b7 || >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8 || >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <d3af62411e19752c663fe4f424dbf49d95a4cc7c || >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <d92b8fac294b5f915c50e65ce4ae2262e53614ec || >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <a437e3bf30e32846079e470c1ba5ee790bccdf89 || >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f || >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <5f73c8b33df9a605a591eab72d43a969600c1f8c || >=d60b479d177a5735b6b4db6ee5280ef6653f50e7 <46ef85f854dfa9d5226b3c1c46493d79556c9589 | 140cc839fbeb1ddb33a8da8811b716d88d3905b7, ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8, d3af62411e19752c663fe4f424dbf49d95a4cc7c, d92b8fac294b5f915c50e65ce4ae2262e53614ec, a437e3bf30e32846079e470c1ba5ee790bccdf89, 9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f, 5f73c8b33df9a605a591eab72d43a969600c1f8c, 46ef85f854dfa9d5226b3c1c46493d79556c9589 |
| Linux/Linuxgeneric | 3.5 | Not reported |
Published upstream
May 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.