{"id":"CVE-2026-31451","state":"PUBLISHED","title":"ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: replace BUG_ON with proper error handling in ext4_read_inline_folio\n\nReplace BUG_ON() with proper error handling when inline data size\nexceeds PAGE_SIZE. This prevents kernel panic and allows the system to\ncontinue running while properly reporting the filesystem corruption.\n\nThe error is logged via ext4_error_inode(), the buffer head is released\nto prevent memory leak, and -EFSCORRUPTED is returned to indicate\nfilesystem corruption.","publishedAt":"2026-04-22T13:53:46.243Z","updatedAt":"2026-10-15T01:16:25.058Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"3462a3f0716d27af51896dc8688bcf0628fb17ee","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"636e8d85a36ab6c31aafd04ee66a69b18eebee7b","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"af25a6affeac4919e8d8c5cccc01a9d53478447e","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"65c6c30ce6362c1c684568744ea510c921a756cd","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"823849a26af089ffc5dfdd2ae4b9d446b46a0cda","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"a7d600e04732a7d29b107c91fe3aec64cf6ce7f2","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"356227096eb66e41b23caf7045e6304877322edf","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext4/inline.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.211","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.177","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.131","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.80","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.21","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.11","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/ext4/inline.c"]}],"references":["https://git.kernel.org/stable/c/3462a3f0716d27af51896dc8688bcf0628fb17ee","https://git.kernel.org/stable/c/636e8d85a36ab6c31aafd04ee66a69b18eebee7b","https://git.kernel.org/stable/c/af25a6affeac4919e8d8c5cccc01a9d53478447e","https://git.kernel.org/stable/c/65c6c30ce6362c1c684568744ea510c921a756cd","https://git.kernel.org/stable/c/d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed","https://git.kernel.org/stable/c/823849a26af089ffc5dfdd2ae4b9d446b46a0cda","https://git.kernel.org/stable/c/a7d600e04732a7d29b107c91fe3aec64cf6ce7f2","https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf","https://cert-portal.siemens.com/productcert/html/ssa-784472.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31451.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31451","state":"PUBLISHED","datePublished":"2026-04-22T13:53:46.243Z","dateUpdated":"2026-10-15T01:16:25.058Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-03-09T15:48:24.091Z"},"containers":{"cna":{"title":"ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: replace BUG_ON with proper error handling in ext4_read_inline_folio\n\nReplace BUG_ON() with proper error handling when inline data size\nexceeds PAGE_SIZE. This prevents kernel panic and allows the system to\ncontinue running while properly reporting the filesystem corruption.\n\nThe error is logged via ext4_error_inode(), the buffer head is released\nto prevent memory leak, and -EFSCORRUPTED is returned to indicate\nfilesystem corruption."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"3462a3f0716d27af51896dc8688bcf0628fb17ee","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"636e8d85a36ab6c31aafd04ee66a69b18eebee7b","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"af25a6affeac4919e8d8c5cccc01a9d53478447e","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"65c6c30ce6362c1c684568744ea510c921a756cd","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"823849a26af089ffc5dfdd2ae4b9d446b46a0cda","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"a7d600e04732a7d29b107c91fe3aec64cf6ce7f2","versionType":"git"},{"version":"46c7f254543dedcf134ad05091ed2b935a9a597d","status":"affected","lessThan":"356227096eb66e41b23caf7045e6304877322edf","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext4/inline.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.211","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.177","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.131","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.80","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.21","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.11","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/ext4/inline.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3462a3f0716d27af51896dc8688bcf0628fb17ee"},{"url":"https://git.kernel.org/stable/c/636e8d85a36ab6c31aafd04ee66a69b18eebee7b"},{"url":"https://git.kernel.org/stable/c/af25a6affeac4919e8d8c5cccc01a9d53478447e"},{"url":"https://git.kernel.org/stable/c/65c6c30ce6362c1c684568744ea510c921a756cd"},{"url":"https://git.kernel.org/stable/c/d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed"},{"url":"https://git.kernel.org/stable/c/823849a26af089ffc5dfdd2ae4b9d446b46a0cda"},{"url":"https://git.kernel.org/stable/c/a7d600e04732a7d29b107c91fe3aec64cf6ce7f2"},{"url":"https://git.kernel.org/stable/c/356227096eb66e41b23caf7045e6304877322edf"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-04T11:50:31.661Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"5.10.260"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"5.15.211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.1.177"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.6.131"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.12.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.18.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.19.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"affected":[{"vendor":"Siemens","product":"SIMATIC S7-1500 TM MFP - 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