{"id":"CVE-2024-26775","state":"PUBLISHED","title":"aoe: avoid potential deadlock at set_capacity","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naoe: avoid potential deadlock at set_capacity\n\nMove set_capacity() outside of the section procected by (&d->lock).\nTo avoid possible interrupt unsafe locking scenario:\n\n        CPU0                    CPU1\n        ----                    ----\n[1] lock(&bdev->bd_size_lock);\n                                local_irq_disable();\n                            [2] lock(&d->lock);\n                            [3] lock(&bdev->bd_size_lock);\n   <Interrupt>\n[4]  lock(&d->lock);\n\n  *** DEADLOCK ***\n\nWhere [1](&bdev->bd_size_lock) hold by zram_add()->set_capacity().\n[2]lock(&d->lock) hold by aoeblk_gdalloc(). And aoeblk_gdalloc()\nis trying to acquire [3](&bdev->bd_size_lock) at set_capacity() call.\nIn this situation an attempt to acquire [4]lock(&d->lock) from\naoecmd_cfg_rsp() will lead to deadlock.\n\nSo the simplest solution is breaking lock dependency\n[2](&d->lock) -> [3](&bdev->bd_size_lock) by moving set_capacity()\noutside.","publishedAt":"2024-04-03T17:01:01.299Z","updatedAt":"2026-05-11T20:03:56.208Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"2499fa286fb010ceb289950050199f33c26667b9","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"2d623c94fbba3554f4446ba6f3c764994e8b0d26","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"673629018ba04906899dcb631beec34d871f709c","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"19a77b27163820f793b4d022979ffdca8f659b77","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"e169bd4fb2b36c4b2bee63c35c740c85daeb2e86","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/block/aoe/aoeblk.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.15.189","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.80","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.19","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.7","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/block/aoe/aoeblk.c"]}],"references":["https://git.kernel.org/stable/c/2499fa286fb010ceb289950050199f33c26667b9","https://git.kernel.org/stable/c/2d623c94fbba3554f4446ba6f3c764994e8b0d26","https://git.kernel.org/stable/c/673629018ba04906899dcb631beec34d871f709c","https://git.kernel.org/stable/c/19a77b27163820f793b4d022979ffdca8f659b77","https://git.kernel.org/stable/c/e169bd4fb2b36c4b2bee63c35c740c85daeb2e86"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:10.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/26xxx/CVE-2024-26775.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-26775","state":"PUBLISHED","datePublished":"2024-04-03T17:01:01.299Z","dateUpdated":"2026-05-11T20:03:56.208Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-19T14:20:24.176Z"},"containers":{"cna":{"title":"aoe: avoid potential deadlock at set_capacity","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\naoe: avoid potential deadlock at set_capacity\n\nMove set_capacity() outside of the section procected by (&d->lock).\nTo avoid possible interrupt unsafe locking scenario:\n\n        CPU0                    CPU1\n        ----                    ----\n[1] lock(&bdev->bd_size_lock);\n                                local_irq_disable();\n                            [2] lock(&d->lock);\n                            [3] lock(&bdev->bd_size_lock);\n   <Interrupt>\n[4]  lock(&d->lock);\n\n  *** DEADLOCK ***\n\nWhere [1](&bdev->bd_size_lock) hold by zram_add()->set_capacity().\n[2]lock(&d->lock) hold by aoeblk_gdalloc(). And aoeblk_gdalloc()\nis trying to acquire [3](&bdev->bd_size_lock) at set_capacity() call.\nIn this situation an attempt to acquire [4]lock(&d->lock) from\naoecmd_cfg_rsp() will lead to deadlock.\n\nSo the simplest solution is breaking lock dependency\n[2](&d->lock) -> [3](&bdev->bd_size_lock) by moving set_capacity()\noutside."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"2499fa286fb010ceb289950050199f33c26667b9","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"2d623c94fbba3554f4446ba6f3c764994e8b0d26","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"673629018ba04906899dcb631beec34d871f709c","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"19a77b27163820f793b4d022979ffdca8f659b77","versionType":"git"},{"version":"a782483cc1f875355690625d8253a232f2581418","status":"affected","lessThan":"e169bd4fb2b36c4b2bee63c35c740c85daeb2e86","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/block/aoe/aoeblk.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.15.189","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.80","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.19","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.7","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/block/aoe/aoeblk.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2499fa286fb010ceb289950050199f33c26667b9"},{"url":"https://git.kernel.org/stable/c/2d623c94fbba3554f4446ba6f3c764994e8b0d26"},{"url":"https://git.kernel.org/stable/c/673629018ba04906899dcb631beec34d871f709c"},{"url":"https://git.kernel.org/stable/c/19a77b27163820f793b4d022979ffdca8f659b77"},{"url":"https://git.kernel.org/stable/c/e169bd4fb2b36c4b2bee63c35c740c85daeb2e86"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:03:56.208Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.1.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.6.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.7.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"6.8"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/2d623c94fbba3554f4446ba6f3c764994e8b0d26","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/673629018ba04906899dcb631beec34d871f709c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/19a77b27163820f793b4d022979ffdca8f659b77","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/e169bd4fb2b36c4b2bee63c35c740c85daeb2e86","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T00:14:13.394Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-26775","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T15:51:17.891108Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-11T17:33:55.155Z"}}]}}}