{"id":"CVE-2023-53144","state":"PUBLISHED","title":"erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix wrong kunmap when using LZMA on HIGHMEM platforms\n\nAs the call trace shown, the root cause is kunmap incorrect pages:\n\n BUG: kernel NULL pointer dereference, address: 00000000\n CPU: 1 PID: 40 Comm: kworker/u5:0 Not tainted 6.2.0-rc5 #4\n Workqueue: erofs_worker z_erofs_decompressqueue_work\n EIP: z_erofs_lzma_decompress+0x34b/0x8ac\n  z_erofs_decompress+0x12/0x14\n  z_erofs_decompress_queue+0x7e7/0xb1c\n  z_erofs_decompressqueue_work+0x32/0x60\n  process_one_work+0x24b/0x4d8\n  ? process_one_work+0x1a4/0x4d8\n  worker_thread+0x14c/0x3fc\n  kthread+0xe6/0x10c\n  ? rescuer_thread+0x358/0x358\n  ? kthread_complete_and_exit+0x18/0x18\n  ret_from_fork+0x1c/0x28\n ---[ end trace 0000000000000000 ]---\n\nThe bug is trivial and should be fixed now.  It has no impact on\n!HIGHMEM platforms.","publishedAt":"2025-05-02T15:56:14.417Z","updatedAt":"2026-05-11T19:39:17.841Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"622ceaddb7649ca328832f50ba1400af778d75fa","status":"affected","lessThan":"fa4056781ac067b5946c6811459e1a36842047fd","versionType":"git"},{"version":"622ceaddb7649ca328832f50ba1400af778d75fa","status":"affected","lessThan":"28aea8ae6cf212a5bf3ed962b27921e2029ad754","versionType":"git"},{"version":"622ceaddb7649ca328832f50ba1400af778d75fa","status":"affected","lessThan":"8f121dfb15f7b4ab345992ce96003eb63fd608f4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/decompressor_lzma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.20","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.7","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/decompressor_lzma.c"]}],"references":["https://git.kernel.org/stable/c/fa4056781ac067b5946c6811459e1a36842047fd","https://git.kernel.org/stable/c/28aea8ae6cf212a5bf3ed962b27921e2029ad754","https://git.kernel.org/stable/c/8f121dfb15f7b4ab345992ce96003eb63fd608f4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53144.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53144","state":"PUBLISHED","datePublished":"2025-05-02T15:56:14.417Z","dateUpdated":"2026-05-11T19:39:17.841Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-02T15:51:43.564Z"},"containers":{"cna":{"title":"erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix wrong kunmap when using LZMA on HIGHMEM platforms\n\nAs the call trace shown, the root cause is kunmap incorrect pages:\n\n BUG: kernel NULL pointer dereference, address: 00000000\n CPU: 1 PID: 40 Comm: kworker/u5:0 Not tainted 6.2.0-rc5 #4\n Workqueue: erofs_worker z_erofs_decompressqueue_work\n EIP: z_erofs_lzma_decompress+0x34b/0x8ac\n  z_erofs_decompress+0x12/0x14\n  z_erofs_decompress_queue+0x7e7/0xb1c\n  z_erofs_decompressqueue_work+0x32/0x60\n  process_one_work+0x24b/0x4d8\n  ? process_one_work+0x1a4/0x4d8\n  worker_thread+0x14c/0x3fc\n  kthread+0xe6/0x10c\n  ? rescuer_thread+0x358/0x358\n  ? kthread_complete_and_exit+0x18/0x18\n  ret_from_fork+0x1c/0x28\n ---[ end trace 0000000000000000 ]---\n\nThe bug is trivial and should be fixed now.  It has no impact on\n!HIGHMEM platforms."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"622ceaddb7649ca328832f50ba1400af778d75fa","status":"affected","lessThan":"fa4056781ac067b5946c6811459e1a36842047fd","versionType":"git"},{"version":"622ceaddb7649ca328832f50ba1400af778d75fa","status":"affected","lessThan":"28aea8ae6cf212a5bf3ed962b27921e2029ad754","versionType":"git"},{"version":"622ceaddb7649ca328832f50ba1400af778d75fa","status":"affected","lessThan":"8f121dfb15f7b4ab345992ce96003eb63fd608f4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/decompressor_lzma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.20","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.7","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/decompressor_lzma.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fa4056781ac067b5946c6811459e1a36842047fd"},{"url":"https://git.kernel.org/stable/c/28aea8ae6cf212a5bf3ed962b27921e2029ad754"},{"url":"https://git.kernel.org/stable/c/8f121dfb15f7b4ab345992ce96003eb63fd608f4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:39:17.841Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}