{"id":"CVE-2023-54268","state":"PUBLISHED","title":"debugobjects: Don't wake up kswapd from fill_pool()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Don't wake up kswapd from fill_pool()\n\nsyzbot is reporting a lockdep warning in fill_pool() because the allocation\nfrom debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM)\nand therefore tries to wake up kswapd, which acquires kswapd_wait::lock.\n\nSince fill_pool() might be called with arbitrary locks held, fill_pool()\nshould not assume that acquiring kswapd_wait::lock is safe.\n\nUse __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for\n!__GFP_DIRECT_RECLAIM allocation.","publishedAt":"2025-12-30T12:15:59.598Z","updatedAt":"2026-05-11T19:58:41.304Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"be646802b3dc408c4dc72a3ac32c3f4a0282414d","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"fd673079749bac97bb30f1461df079e6c8e86511","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"aee97eec77029270866c704f66cdf2881cbd2fe1","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"d7fff52c99d52f180d8bef95d8ed8fec6343889c","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"4c088d30a72d9b8f9c6ae9362222942e4075cb00","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"eb799279fb1f9c63c520fe8c1c41cb9154252db6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["lib/debugobjects.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.26","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.26","versionType":"semver"},{"version":"5.4.244","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.181","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.114","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.31","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.5","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["lib/debugobjects.c"]}],"references":["https://git.kernel.org/stable/c/be646802b3dc408c4dc72a3ac32c3f4a0282414d","https://git.kernel.org/stable/c/fd673079749bac97bb30f1461df079e6c8e86511","https://git.kernel.org/stable/c/aee97eec77029270866c704f66cdf2881cbd2fe1","https://git.kernel.org/stable/c/d7fff52c99d52f180d8bef95d8ed8fec6343889c","https://git.kernel.org/stable/c/4c088d30a72d9b8f9c6ae9362222942e4075cb00","https://git.kernel.org/stable/c/eb799279fb1f9c63c520fe8c1c41cb9154252db6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:42.242Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/54xxx/CVE-2023-54268.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54268","state":"PUBLISHED","datePublished":"2025-12-30T12:15:59.598Z","dateUpdated":"2026-05-11T19:58:41.304Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-30T12:06:44.518Z"},"containers":{"cna":{"title":"debugobjects: Don't wake up kswapd from fill_pool()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Don't wake up kswapd from fill_pool()\n\nsyzbot is reporting a lockdep warning in fill_pool() because the allocation\nfrom debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM)\nand therefore tries to wake up kswapd, which acquires kswapd_wait::lock.\n\nSince fill_pool() might be called with arbitrary locks held, fill_pool()\nshould not assume that acquiring kswapd_wait::lock is safe.\n\nUse __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for\n!__GFP_DIRECT_RECLAIM allocation."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"be646802b3dc408c4dc72a3ac32c3f4a0282414d","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"fd673079749bac97bb30f1461df079e6c8e86511","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"aee97eec77029270866c704f66cdf2881cbd2fe1","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"d7fff52c99d52f180d8bef95d8ed8fec6343889c","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"4c088d30a72d9b8f9c6ae9362222942e4075cb00","versionType":"git"},{"version":"3ac7fe5a4aab409bd5674d0b070bce97f9d20872","status":"affected","lessThan":"eb799279fb1f9c63c520fe8c1c41cb9154252db6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["lib/debugobjects.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.26","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.26","versionType":"semver"},{"version":"5.4.244","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.181","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.114","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.31","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.5","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["lib/debugobjects.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/be646802b3dc408c4dc72a3ac32c3f4a0282414d"},{"url":"https://git.kernel.org/stable/c/fd673079749bac97bb30f1461df079e6c8e86511"},{"url":"https://git.kernel.org/stable/c/aee97eec77029270866c704f66cdf2881cbd2fe1"},{"url":"https://git.kernel.org/stable/c/d7fff52c99d52f180d8bef95d8ed8fec6343889c"},{"url":"https://git.kernel.org/stable/c/4c088d30a72d9b8f9c6ae9362222942e4075cb00"},{"url":"https://git.kernel.org/stable/c/eb799279fb1f9c63c520fe8c1c41cb9154252db6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:58:41.304Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"5.4.244"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"5.10.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"5.15.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"6.1.31"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"6.3.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"6.4"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}