{"id":"CVE-2026-74352","state":"PUBLISHED","title":"of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nof: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails\n\nThe global pointer 'reserved_mem' continues to reference the\nreserved_mem_array which lives in __initdata if\nalloc_reserved_mem_array() fails. of_reserved_mem_lookup() is\nexported for post-init use, that would dereference freed memory\nand trigger a use-after-free.\n\nSo reset reserved_mem_count to 0 when alloc_reserved_mem_array()\nfails.","publishedAt":"2026-08-15T05:58:38.710Z","updatedAt":"2026-08-17T05:17:45.878Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b6ae53301eb41f0f59f83c161248b186bca7da70","status":"affected","lessThan":"6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b","versionType":"git"},{"version":"00c9a452a235c61f099504783badd9a7675ff5a5","status":"affected","lessThan":"9af58d10d0d8c08b822de5fc99e61f31a87ede8d","versionType":"git"},{"version":"00c9a452a235c61f099504783badd9a7675ff5a5","status":"affected","lessThan":"cbd3102fe27bc87da244bf4c3ba670ea4698b0a8","versionType":"git"},{"version":"00c9a452a235c61f099504783badd9a7675ff5a5","status":"affected","lessThan":"e1686ca81dbf3edbde589b7daf312b45cbf76e03","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/of/of_reserved_mem.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/of/of_reserved_mem.c"]}],"references":["https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b","https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d","https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8","https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74352.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74352","state":"PUBLISHED","datePublished":"2026-08-15T05:58:38.710Z","dateUpdated":"2026-08-17T05:17:45.878Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.886Z"},"containers":{"cna":{"title":"of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nof: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails\n\nThe global pointer 'reserved_mem' continues to reference the\nreserved_mem_array which lives in __initdata if\nalloc_reserved_mem_array() fails. of_reserved_mem_lookup() is\nexported for post-init use, that would dereference freed memory\nand trigger a use-after-free.\n\nSo reset reserved_mem_count to 0 when alloc_reserved_mem_array()\nfails."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b6ae53301eb41f0f59f83c161248b186bca7da70","status":"affected","lessThan":"6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b","versionType":"git"},{"version":"00c9a452a235c61f099504783badd9a7675ff5a5","status":"affected","lessThan":"9af58d10d0d8c08b822de5fc99e61f31a87ede8d","versionType":"git"},{"version":"00c9a452a235c61f099504783badd9a7675ff5a5","status":"affected","lessThan":"cbd3102fe27bc87da244bf4c3ba670ea4698b0a8","versionType":"git"},{"version":"00c9a452a235c61f099504783badd9a7675ff5a5","status":"affected","lessThan":"e1686ca81dbf3edbde589b7daf312b45cbf76e03","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/of/of_reserved_mem.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/of/of_reserved_mem.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b"},{"url":"https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d"},{"url":"https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8"},{"url":"https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:17:45.878Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}