{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43163","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-01T14:12:55.990Z","datePublished":"2026-05-06T11:27:41.265Z","dateUpdated":"2026-05-11T22:18:58.873Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:18:58.873Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/bitmap: fix GPF in write_page caused by resize race\n\nA General Protection Fault occurs in write_page() during array resize:\nRIP: 0010:write_page+0x22b/0x3c0 [md_mod]\n\nThis is a use-after-free race between bitmap_daemon_work() and\n__bitmap_resize(). The daemon iterates over `bitmap->storage.filemap`\nwithout locking, while the resize path frees that storage via\nmd_bitmap_file_unmap(). `quiesce()` does not stop the md thread,\nallowing concurrent access to freed pages.\n\nFix by holding `mddev->bitmap_info.mutex` during the bitmap update."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/md-bitmap.c"],"versions":[{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"140cc839fbeb1ddb33a8da8811b716d88d3905b7","status":"affected","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8","status":"affected","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"d3af62411e19752c663fe4f424dbf49d95a4cc7c","status":"affected","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"d92b8fac294b5f915c50e65ce4ae2262e53614ec","status":"affected","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"a437e3bf30e32846079e470c1ba5ee790bccdf89","status":"affected","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f","status":"affected","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"5f73c8b33df9a605a591eab72d43a969600c1f8c","status":"affected","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","lessThan":"46ef85f854dfa9d5226b3c1c46493d79556c9589","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/md-bitmap.c"],"versions":[{"version":"3.5","status":"affected"},{"version":"0","lessThan":"3.5","status":"unaffected","versionType":"semver"},{"version":"5.10.252","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.202","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.165","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.128","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.75","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.16","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.6","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.10.252"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/140cc839fbeb1ddb33a8da8811b716d88d3905b7"},{"url":"https://git.kernel.org/stable/c/ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8"},{"url":"https://git.kernel.org/stable/c/d3af62411e19752c663fe4f424dbf49d95a4cc7c"},{"url":"https://git.kernel.org/stable/c/d92b8fac294b5f915c50e65ce4ae2262e53614ec"},{"url":"https://git.kernel.org/stable/c/a437e3bf30e32846079e470c1ba5ee790bccdf89"},{"url":"https://git.kernel.org/stable/c/9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f"},{"url":"https://git.kernel.org/stable/c/5f73c8b33df9a605a591eab72d43a969600c1f8c"},{"url":"https://git.kernel.org/stable/c/46ef85f854dfa9d5226b3c1c46493d79556c9589"}],"title":"md/bitmap: fix GPF in write_page caused by resize race","x_generator":{"engine":"bippy-1.2.0"}}}}