{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50137","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-06-18T10:57:27.422Z","datePublished":"2025-06-18T11:03:00.899Z","dateUpdated":"2026-08-05T08:57:31.640Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T08:57:31.640Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix a window for use-after-free\n\nDuring a destroy CQ an interrupt may cause processing of a CQE after CQ\nresources are freed by irdma_cq_free_rsrc(). Fix this by moving the call\nto irdma_cq_free_rsrc() after the irdma_sc_cleanup_ceqes(), which is\ncalled under the cq_lock."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The bug is triggered by destroying an irdma completion queue through the RDMA verbs path (/dev/infiniband/uverbs* → ib_uverbs_destroy_cq → irdma_destroy_cq); no remote packet parser reaches this free path.\nAC:L - An attacker who owns the RDMA context controls both sides of the race—posting work to keep CEQ completions pending and concurrently destroying the CQ—so the window between irdma_cq_free_rsrc() and irdma_sc_cleanup_ceqes() can be hit reliably by retrying.\nPR:L - InfiniBand user verbs are intended for unprivileged processes, and creating/destroying a CQ requires only an RDMA uverbs context, not capabilities in the init user namespace.\nUI:N - The attacker performs the verbs operations themselves; no action by another user is required.\nS:U - The use-after-free corrupts kernel memory within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Use-after-free of CQ resources while irdma_process_ceq()/irdma_sc_process_ceq() still handles CEQEs allows reclaim of freed DMA/slab state and attacker-controlled reads via the completion path.\nI:H - The same UAF lets the interrupt path operate on freed/reclaimed CQ state (including irdma_sc_cq_ack() doorbell writes and irdma_iwarp_ce_handler()'s indirect comp_handler call), enabling arbitrary write and control-flow hijack primitives.\nA:H - Even without full exploitation, processing CEQEs against freed CQ resources causes kernel oops/panic in interrupt/softirq context and takes the system down."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/irdma/verbs.c"],"versions":[{"version":"b48c24c2d710cf34810c555dcef883a3d35a9c08","lessThan":"92520864ef9f912f38b403d172a0ded020683d55","status":"affected","versionType":"git"},{"version":"b48c24c2d710cf34810c555dcef883a3d35a9c08","lessThan":"0abf2eef80295923b819ce89ff9edc1fe61be17c","status":"affected","versionType":"git"},{"version":"b48c24c2d710cf34810c555dcef883a3d35a9c08","lessThan":"350ac793a03c8a30a3f2b27fc282cd1c67070763","status":"affected","versionType":"git"},{"version":"b48c24c2d710cf34810c555dcef883a3d35a9c08","lessThan":"8ecef7890b3aea78c8bbb501a4b5b8134367b821","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/irdma/verbs.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"5.15.61","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.18.18","lessThanOrEqual":"5.18.*","status":"unaffected","versionType":"semver"},{"version":"5.19.2","lessThanOrEqual":"5.19.*","status":"unaffected","versionType":"semver"},{"version":"6.0","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":"5.14","versionEndExcluding":"5.15.61"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.18.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.19.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/92520864ef9f912f38b403d172a0ded020683d55"},{"url":"https://git.kernel.org/stable/c/0abf2eef80295923b819ce89ff9edc1fe61be17c"},{"url":"https://git.kernel.org/stable/c/350ac793a03c8a30a3f2b27fc282cd1c67070763"},{"url":"https://git.kernel.org/stable/c/8ecef7890b3aea78c8bbb501a4b5b8134367b821"}],"title":"RDMA/irdma: Fix a window for use-after-free","x_generator":{"engine":"bippy-1.2.0"}}}}