{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-52903","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-08-21T06:07:11.014Z","datePublished":"2024-08-21T06:10:43.857Z","dateUpdated":"2025-05-04T07:45:42.625Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:45:42.625Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: lock overflowing for IOPOLL\n\nsyzbot reports an issue with overflow filling for IOPOLL:\n\nWARNING: CPU: 0 PID: 28 at io_uring/io_uring.c:734 io_cqring_event_overflow+0x1c0/0x230 io_uring/io_uring.c:734\nCPU: 0 PID: 28 Comm: kworker/u4:1 Not tainted 6.2.0-rc3-syzkaller-16369-g358a161a6a9e #0\nWorkqueue: events_unbound io_ring_exit_work\nCall trace:\n io_cqring_event_overflow+0x1c0/0x230 io_uring/io_uring.c:734\n io_req_cqe_overflow+0x5c/0x70 io_uring/io_uring.c:773\n io_fill_cqe_req io_uring/io_uring.h:168 [inline]\n io_do_iopoll+0x474/0x62c io_uring/rw.c:1065\n io_iopoll_try_reap_events+0x6c/0x108 io_uring/io_uring.c:1513\n io_uring_try_cancel_requests+0x13c/0x258 io_uring/io_uring.c:3056\n io_ring_exit_work+0xec/0x390 io_uring/io_uring.c:2869\n process_one_work+0x2d8/0x504 kernel/workqueue.c:2289\n worker_thread+0x340/0x610 kernel/workqueue.c:2436\n kthread+0x12c/0x158 kernel/kthread.c:376\n ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863\n\nThere is no real problem for normal IOPOLL as flush is also called with\nuring_lock taken, but it's getting more complicated for IOPOLL|SQPOLL,\nfor which __io_cqring_overflow_flush() happens from the CQ waiting path."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/rw.c"],"versions":[{"version":"2b188cc1bb857a9d4701ae59aa7768b5124e262e","lessThan":"de77faee280163ff03b7ab64af6c9d779a43d4c4","status":"affected","versionType":"git"},{"version":"2b188cc1bb857a9d4701ae59aa7768b5124e262e","lessThan":"ed4629d1e968359fbb91d0a3780b1e86a2c08845","status":"affected","versionType":"git"},{"version":"2b188cc1bb857a9d4701ae59aa7768b5124e262e","lessThan":"7fc3990dad04a677606337ebc61964094d6cb41b","status":"affected","versionType":"git"},{"version":"2b188cc1bb857a9d4701ae59aa7768b5124e262e","lessThan":"544d163d659d45a206d8929370d5a2984e546cb7","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/rw.c"],"versions":[{"version":"5.1","status":"affected"},{"version":"0","lessThan":"5.1","status":"unaffected","versionType":"semver"},{"version":"5.10.165","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.89","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.7","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2","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":"5.1","versionEndExcluding":"5.10.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"5.15.89"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.1.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1","versionEndExcluding":"6.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/de77faee280163ff03b7ab64af6c9d779a43d4c4"},{"url":"https://git.kernel.org/stable/c/ed4629d1e968359fbb91d0a3780b1e86a2c08845"},{"url":"https://git.kernel.org/stable/c/7fc3990dad04a677606337ebc61964094d6cb41b"},{"url":"https://git.kernel.org/stable/c/544d163d659d45a206d8929370d5a2984e546cb7"}],"title":"io_uring: lock overflowing for IOPOLL","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52903","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:03:21.069603Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-12T17:33:14.061Z"}}]}}