{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T08:11:25.194","vulnerabilities":[{"cve":{"id":"CVE-2022-50434","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-10-01T12:15:35.267","lastModified":"2026-01-23T02:08:59.633","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: fix possible memleak when register 'hctx' failed\n\nThere's issue as follows when do fault injection test:\nunreferenced object 0xffff888132a9f400 (size 512):\n  comm \"insmod\", pid 308021, jiffies 4324277909 (age 509.733s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 08 f4 a9 32 81 88 ff ff  ...........2....\n    08 f4 a9 32 81 88 ff ff 00 00 00 00 00 00 00 00  ...2............\n  backtrace:\n    [<00000000e8952bb4>] kmalloc_node_trace+0x22/0xa0\n    [<00000000f9980e0f>] blk_mq_alloc_and_init_hctx+0x3f1/0x7e0\n    [<000000002e719efa>] blk_mq_realloc_hw_ctxs+0x1e6/0x230\n    [<000000004f1fda40>] blk_mq_init_allocated_queue+0x27e/0x910\n    [<00000000287123ec>] __blk_mq_alloc_disk+0x67/0xf0\n    [<00000000a2a34657>] 0xffffffffa2ad310f\n    [<00000000b173f718>] 0xffffffffa2af824a\n    [<0000000095a1dabb>] do_one_initcall+0x87/0x2a0\n    [<00000000f32fdf93>] do_init_module+0xdf/0x320\n    [<00000000cbe8541e>] load_module+0x3006/0x3390\n    [<0000000069ed1bdb>] __do_sys_finit_module+0x113/0x1b0\n    [<00000000a1a29ae8>] do_syscall_64+0x35/0x80\n    [<000000009cd878b0>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFault injection context as follows:\n kobject_add\n blk_mq_register_hctx\n blk_mq_sysfs_register\n blk_register_queue\n device_add_disk\n null_add_dev.part.0 [null_blk]\n\nAs 'blk_mq_register_hctx' may already add some objects when failed halfway,\nbut there isn't do fallback, caller don't know which objects add failed.\nTo solve above issue just do fallback when add objects failed halfway in\n'blk_mq_register_hctx'."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-401"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"4.9.337","matchCriteriaId":"5522724B-B972-4CDA-9782-6ACEC2A639E4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"4.14.303","matchCriteriaId":"1E7450AD-4739-46F0-B81B-C02E7B35A97B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"4.19.270","matchCriteriaId":"AE8904A3-99BE-4E49-9682-1F90A6373F4F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.229","matchCriteriaId":"A0C0D95E-414A-445E-941B-3EF6A4D3A093"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.163","matchCriteriaId":"D05D31FC-BD74-4F9E-B1D8-9CED62BE6F65"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.86","matchCriteriaId":"47237296-55D1-4ED4-8075-D00FC85A61EE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.0.16","matchCriteriaId":"C720A569-3D93-4D77-95F6-E2B3A3267D9F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.2","matchCriteriaId":"77239F4B-6BB2-4B9E-A654-36A52396116C"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/02bc8bc6eab03c84373281b85cb6e98747172ff7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/33e8a3f61814ea30615d0fafaf50477975d6c1ca","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/4b7a21c57b14fbcd0e1729150189e5933f5088e9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/4b7fafa5f39b15c3a6ca3b95e534d05d6904cc95","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/654870789c3c1b9763316ef1c71d7a449127b175","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/87fd18016a47ea8ae12641377a390172c4aa97a7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/cb186eb47fb9dd327bdefa15f0c5fc55c53a40dd","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e8022da1fa2fdf2fa204b445dd3354e7a66d085a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eff45bfbc25a2509a6362dea6e699e14083c693c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}