{"id":"CVE-2026-43262","state":"PUBLISHED","title":"gfs2: fiemap page fault fix","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: fiemap page fault fix\n\nIn gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode\nglock.  This can lead to recursive glock taking if the fiemap buffer is\nmemory mapped to the same inode and accessing it triggers a page fault.\n\nFix by disabling page faults for iomap_fiemap() and faulting in the\nbuffer by hand if necessary.\n\nFixes xfstest generic/742.","publishedAt":"2026-05-06T11:28:49.480Z","updatedAt":"2026-05-11T22:21:09.600Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"5d5d9ec957bfa1eb2b05861c19f5d701dd006db7","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"cead3bebf3e318578b8a86a5472015d713d2a8a8","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"e428670cfb2993d8c224effd076242ca6b0950de","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"5d2c4f182ea8516de8682e2b60411c03df00e3ea","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"2e121c53b581e40397ae08090a7af4ed10781fbc","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/inode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.29","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.29","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/inode.c"]}],"references":["https://git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7","https://git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8","https://git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de","https://git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea","https://git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc","https://git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab","https://git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43262.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43262","state":"PUBLISHED","datePublished":"2026-05-06T11:28:49.480Z","dateUpdated":"2026-05-11T22:21:09.600Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.997Z"},"containers":{"cna":{"title":"gfs2: fiemap page fault fix","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: fiemap page fault fix\n\nIn gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode\nglock.  This can lead to recursive glock taking if the fiemap buffer is\nmemory mapped to the same inode and accessing it triggers a page fault.\n\nFix by disabling page faults for iomap_fiemap() and faulting in the\nbuffer by hand if necessary.\n\nFixes xfstest generic/742."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"5d5d9ec957bfa1eb2b05861c19f5d701dd006db7","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"cead3bebf3e318578b8a86a5472015d713d2a8a8","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"e428670cfb2993d8c224effd076242ca6b0950de","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"5d2c4f182ea8516de8682e2b60411c03df00e3ea","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"2e121c53b581e40397ae08090a7af4ed10781fbc","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab","versionType":"git"},{"version":"e9079cce201784632aed4b1a3121ee38c1ced0b6","status":"affected","lessThan":"e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/inode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.29","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.29","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/inode.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7"},{"url":"https://git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8"},{"url":"https://git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de"},{"url":"https://git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea"},{"url":"https://git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc"},{"url":"https://git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab"},{"url":"https://git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:21:09.600Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}