{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53537","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-04T15:14:15.919Z","datePublished":"2025-10-04T15:16:48.006Z","dateUpdated":"2026-05-11T19:46:53.515Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:46:53.515Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid use-after-free for cached IPU bio\n\nxfstest generic/019 reports a bug:\n\nkernel BUG at mm/filemap.c:1619!\nRIP: 0010:folio_end_writeback+0x8a/0x90\nCall Trace:\n end_page_writeback+0x1c/0x60\n f2fs_write_end_io+0x199/0x420\n bio_endio+0x104/0x180\n submit_bio_noacct+0xa5/0x510\n submit_bio+0x48/0x80\n f2fs_submit_write_bio+0x35/0x300\n f2fs_submit_merged_ipu_write+0x2a0/0x2b0\n f2fs_write_single_data_page+0x838/0x8b0\n f2fs_write_cache_pages+0x379/0xa30\n f2fs_write_data_pages+0x30c/0x340\n do_writepages+0xd8/0x1b0\n __writeback_single_inode+0x44/0x370\n writeback_sb_inodes+0x233/0x4d0\n __writeback_inodes_wb+0x56/0xf0\n wb_writeback+0x1dd/0x2d0\n wb_workfn+0x367/0x4a0\n process_one_work+0x21d/0x430\n worker_thread+0x4e/0x3c0\n kthread+0x103/0x130\n ret_from_fork+0x2c/0x50\n\nThe root cause is: after cp_error is set, f2fs_submit_merged_ipu_write()\nin f2fs_write_single_data_page() tries to flush IPU bio in cache, however\nf2fs_submit_merged_ipu_write() missed to check validity of @bio parameter,\nresult in submitting random cached bio which belong to other IO context,\nthen it will cause use-after-free issue, fix it by adding additional\nvalidity check."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/data.c"],"versions":[{"version":"0b20fcec8651569935a10afe03fedc0b812d044e","lessThan":"b2f423fda64fb49213aa0ed5056079cf295a5df2","status":"affected","versionType":"git"},{"version":"0b20fcec8651569935a10afe03fedc0b812d044e","lessThan":"9a7f63283af6befc0f91d549f4f6917dff7479a9","status":"affected","versionType":"git"},{"version":"0b20fcec8651569935a10afe03fedc0b812d044e","lessThan":"7d058f0ab161437369ad6e45a4b67c2886e71373","status":"affected","versionType":"git"},{"version":"0b20fcec8651569935a10afe03fedc0b812d044e","lessThan":"97ec6f1788cc6bee3f8c89cb908e1a2a1cd859bb","status":"affected","versionType":"git"},{"version":"0b20fcec8651569935a10afe03fedc0b812d044e","lessThan":"af4ce124d7bd74cb839bbdaccffbb416771a56b5","status":"affected","versionType":"git"},{"version":"0b20fcec8651569935a10afe03fedc0b812d044e","lessThan":"5cdb422c839134273866208dad5360835ddb9794","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/data.c"],"versions":[{"version":"5.5","status":"affected"},{"version":"0","lessThan":"5.5","status":"unaffected","versionType":"semver"},{"version":"5.10.180","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.111","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.28","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2.15","lessThanOrEqual":"6.2.*","status":"unaffected","versionType":"semver"},{"version":"6.3.2","lessThanOrEqual":"6.3.*","status":"unaffected","versionType":"semver"},{"version":"6.4","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":"5.5","versionEndExcluding":"5.10.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.15.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.28"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.2.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.3.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.4"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b2f423fda64fb49213aa0ed5056079cf295a5df2"},{"url":"https://git.kernel.org/stable/c/9a7f63283af6befc0f91d549f4f6917dff7479a9"},{"url":"https://git.kernel.org/stable/c/7d058f0ab161437369ad6e45a4b67c2886e71373"},{"url":"https://git.kernel.org/stable/c/97ec6f1788cc6bee3f8c89cb908e1a2a1cd859bb"},{"url":"https://git.kernel.org/stable/c/af4ce124d7bd74cb839bbdaccffbb416771a56b5"},{"url":"https://git.kernel.org/stable/c/5cdb422c839134273866208dad5360835ddb9794"}],"title":"f2fs: fix to avoid use-after-free for cached IPU bio","x_generator":{"engine":"bippy-1.2.0"}}}}