{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23211","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.986Z","datePublished":"2026-02-18T14:16:27.015Z","dateUpdated":"2026-05-11T22:02:28.280Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:02:28.280Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm, swap: restore swap_space attr aviod kernel panic\n\ncommit 8b47299a411a (\"mm, swap: mark swap address space ro and add context\ndebug check\") made the swap address space read-only.  It may lead to\nkernel panic if arch_prepare_to_swap returns a failure under heavy memory\npressure as follows,\n\nel1_abort+0x40/0x64\nel1h_64_sync_handler+0x48/0xcc\nel1h_64_sync+0x84/0x88\nerrseq_set+0x4c/0xb8 (P)\n__filemap_set_wb_err+0x20/0xd0\nshrink_folio_list+0xc20/0x11cc\nevict_folios+0x1520/0x1be4\ntry_to_shrink_lruvec+0x27c/0x3dc\nshrink_one+0x9c/0x228\nshrink_node+0xb3c/0xeac\ndo_try_to_free_pages+0x170/0x4f0\ntry_to_free_pages+0x334/0x534\n__alloc_pages_direct_reclaim+0x90/0x158\n__alloc_pages_slowpath+0x334/0x588\n__alloc_frozen_pages_noprof+0x224/0x2fc\n__folio_alloc_noprof+0x14/0x64\nvma_alloc_zeroed_movable_folio+0x34/0x44\ndo_pte_missing+0xad4/0x1040\nhandle_mm_fault+0x4a4/0x790\ndo_page_fault+0x288/0x5f8\ndo_translation_fault+0x38/0x54\ndo_mem_abort+0x54/0xa8\n\nRestore swap address space as not ro to avoid the panic."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/swap.h","mm/swap_state.c"],"versions":[{"version":"8b47299a411a178d572aaac31ff7ab33a8bd27e2","lessThan":"b0020cbd26380177b9fb8b7e75a8f7bdba79db20","status":"affected","versionType":"git"},{"version":"8b47299a411a178d572aaac31ff7ab33a8bd27e2","lessThan":"a0f3c0845a4ff68d403c568266d17e9cc553e561","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/swap.h","mm/swap_state.c"],"versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"6.18.9","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","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":"6.18","versionEndExcluding":"6.18.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b0020cbd26380177b9fb8b7e75a8f7bdba79db20"},{"url":"https://git.kernel.org/stable/c/a0f3c0845a4ff68d403c568266d17e9cc553e561"}],"title":"mm, swap: restore swap_space attr aviod kernel panic","x_generator":{"engine":"bippy-1.2.0"}}}}