{"id":"CVE-2026-53049","title":"gfs2: add some missing log locking","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: add some missing log locking\n\nFunction gfs2_logd() calls the log flushing functions gfs2_ail1_start(),\ngfs2_ail1_wait(), and gfs2_ail1_empty() without holding sdp…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < 3b28eb75afe520972bacc833850c2b30aa0824cd","Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < ca95342cb1b39062a03c115830286f0a426053d5","Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < bf5fcd9c37c2546beaf7b401d31aefd89017dc3d","Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < f2f225cf505ac016132ded21690f3ba0a080a4e8","Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < 49d9be0722da3a4a893ba905720cba1921834ec3","Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < 98e8bf249c790d56de1abc4a5f8bd68035a00921","Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < fe2c8d051150b90b3ccb85f89e3b1d636cb88ec8","Linux 5.7"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-16T15:24:53.809921Z"},"published":"2026-06-24","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:31:29.591Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53049","references":[{"url":"https://git.kernel.org/stable/c/3b28eb75afe520972bacc833850c2b30aa0824cd"},{"url":"https://git.kernel.org/stable/c/ca95342cb1b39062a03c115830286f0a426053d5"},{"url":"https://git.kernel.org/stable/c/bf5fcd9c37c2546beaf7b401d31aefd89017dc3d"},{"url":"https://git.kernel.org/stable/c/f2f225cf505ac016132ded21690f3ba0a080a4e8"},{"url":"https://git.kernel.org/stable/c/49d9be0722da3a4a893ba905720cba1921834ec3"},{"url":"https://git.kernel.org/stable/c/98e8bf249c790d56de1abc4a5f8bd68035a00921"},{"url":"https://git.kernel.org/stable/c/fe2c8d051150b90b3ccb85f89e3b1d636cb88ec8"}],"tags":["cve.org"],"epss":0.00388,"epssPercentile":0.31306,"ingestedAt":"2026-10-16T17:24:46.728Z","slug":"CVE-2026-53049","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: add some missing log locking\n\nFunction gfs2_logd() calls the log flushing functions gfs2_ail1_start(),\ngfs2_ail1_wait(), and gfs2_ail1_empty() without holding sdp->sd_log_flush_lock,\nbut these functions require exclusion against concurrent transactions.\n\nTo fix that, add a non-locking __gfs2_log_flush() function.  Then, in\ngfs2_logd(), take sdp->sd_log_flush_lock before calling the above mentioned log\nflushing functions and __gfs2_log_flush().\n\n## Affected\n\n- `Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < 3b28eb75afe520972bacc833850c2b30aa0824cd`\n- `Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < ca95342cb1b39062a03c115830286f0a426053d5`\n- `Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < bf5fcd9c37c2546beaf7b401d31aefd89017dc3d`\n- `Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < f2f225cf505ac016132ded21690f3ba0a080a4e8`\n- `Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < 49d9be0722da3a4a893ba905720cba1921834ec3`\n- `Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < 98e8bf249c790d56de1abc4a5f8bd68035a00921`\n- `Linux >= 5e4c7632aae1cce137792647f4fb6f599d1da893 < fe2c8d051150b90b3ccb85f89e3b1d636cb88ec8`\n- `Linux 5.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}