{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53326","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.398Z","datePublished":"2026-07-01T13:32:12.924Z","dateUpdated":"2026-07-04T11:51:04.894Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-04T11:51:04.894Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Don't call fill_pool() in early boot hardirq context\n\nWhen booting a debug PREEMPT_RT kernel on an ARM64 system, a \"inconsistent\n{HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage\" lockdep warning message was\nreported to the console.\n\nDuring early boot, interrupts are enabled before the scheduler is\nenabled. In this window (before SYSTEM_SCHEDULING is set) interrupts can\nfire and in the hard interrupt context handler attempt to fill the pool\n\nThis can lead to a deadlock when the interrupt occurred when the interrupt\nhits a region which holds a lock that is required to be taken in the\nallocation path.\n\nAdd a new can_fill_pool() helper and reorder the exception rule and forbid\nthis scenario by excluding allocations from hard interrupt context."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["lib/debugobjects.c"],"versions":[{"version":"13abb2b11ac3b6cb89822f152e770081893e4bc3","lessThan":"3cc90ea0dd0fb1f8db577dcdc027fc46c06049f6","status":"affected","versionType":"git"},{"version":"0d2a64411b0974a469ff56e62441055147e5a194","lessThan":"5d95f6b267f3d7fe54f42a3b224bb4a3d3990b41","status":"affected","versionType":"git"},{"version":"c93859a52b0d6953cdaa17fd7fb46a6871b015cf","lessThan":"27335c50014102e9077b784ebd314954286afcab","status":"affected","versionType":"git"},{"version":"a460935022f512e167b4c5d4c12d85f89ba6aabd","lessThan":"44b8b03a9fb5c575548fc72c674653d6baba142a","status":"affected","versionType":"git"},{"version":"06e0ae988f6e3499785c407429953ade19c1096b","lessThan":"7bc71bdb1c1526c7f02a6adab324394ff1327b0a","status":"affected","versionType":"git"},{"version":"06e0ae988f6e3499785c407429953ade19c1096b","lessThan":"0d046ae106255cba5eb83b23f78ee93f3620247d","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["lib/debugobjects.c"],"versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"7.0.13","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3cc90ea0dd0fb1f8db577dcdc027fc46c06049f6"},{"url":"https://git.kernel.org/stable/c/5d95f6b267f3d7fe54f42a3b224bb4a3d3990b41"},{"url":"https://git.kernel.org/stable/c/27335c50014102e9077b784ebd314954286afcab"},{"url":"https://git.kernel.org/stable/c/44b8b03a9fb5c575548fc72c674653d6baba142a"},{"url":"https://git.kernel.org/stable/c/7bc71bdb1c1526c7f02a6adab324394ff1327b0a"},{"url":"https://git.kernel.org/stable/c/0d046ae106255cba5eb83b23f78ee93f3620247d"}],"title":"debugobjects: Don't call fill_pool() in early boot hardirq context","x_generator":{"engine":"bippy-1.2.0"}}}}