CVE-2026-43163None▾ SunlitIn 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]…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.09%
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.
Linux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 140cc839fbeb1ddb33a8da8811b716d88d3905b7Linux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8Linux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < d3af62411e19752c663fe4f424dbf49d95a4cc7cLinux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < d92b8fac294b5f915c50e65ce4ae2262e53614ecLinux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < a437e3bf30e32846079e470c1ba5ee790bccdf89Linux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 9a6f8cd28bb9bb6ed86a6df19331fb08016dee7fLinux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 5f73c8b33df9a605a591eab72d43a969600c1f8cLinux >= d60b479d177a5735b6b4db6ee5280ef6653f50e7 < 46ef85f854dfa9d5226b3c1c46493d79556c9589Linux 3.5Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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