CVE-2022-50434

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50434", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:53:07.009Z", "datePublished": "2025-10-01T11:42:12.160Z", "dateUpdated": "2026-11-05T20:20:43.844Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:19:25.292Z"}, "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'."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/blk-mq-sysfs.c"], "versions": [{"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "654870789c3c1b9763316ef1c71d7a449127b175", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "cb186eb47fb9dd327bdefa15f0c5fc55c53a40dd", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "02bc8bc6eab03c84373281b85cb6e98747172ff7", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "87fd18016a47ea8ae12641377a390172c4aa97a7", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "e8022da1fa2fdf2fa204b445dd3354e7a66d085a", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "eff45bfbc25a2509a6362dea6e699e14083c693c", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "4b7fafa5f39b15c3a6ca3b95e534d05d6904cc95", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "33e8a3f61814ea30615d0fafaf50477975d6c1ca", "status": "affected", "versionType": "git"}, {"version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "4b7a21c57b14fbcd0e1729150189e5933f5088e9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["block/blk-mq-sysfs.c"], "versions": [{"version": "3.16", "status": "affected"}, {"version": "0", "lessThan": "3.16", "status": "unaffected", "versionType": "semver"}, {"version": "4.9.337", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.303", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.270", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.229", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "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": "3.16", "versionEndExcluding": "4.9.337"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "4.14.303"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "4.19.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.4.229"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.10.163"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.15.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.0.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/654870789c3c1b9763316ef1c71d7a449127b175"}, {"url": "https://git.kernel.org/stable/c/cb186eb47fb9dd327bdefa15f0c5fc55c53a40dd"}, {"url": "https://git.kernel.org/stable/c/02bc8bc6eab03c84373281b85cb6e98747172ff7"}, {"url": "https://git.kernel.org/stable/c/87fd18016a47ea8ae12641377a390172c4aa97a7"}, {"url": "https://git.kernel.org/stable/c/e8022da1fa2fdf2fa204b445dd3354e7a66d085a"}, {"url": "https://git.kernel.org/stable/c/eff45bfbc25a2509a6362dea6e699e14083c693c"}, {"url": "https://git.kernel.org/stable/c/4b7fafa5f39b15c3a6ca3b95e534d05d6904cc95"}, {"url": "https://git.kernel.org/stable/c/33e8a3f61814ea30615d0fafaf50477975d6c1ca"}, {"url": "https://git.kernel.org/stable/c/4b7a21c57b14fbcd0e1729150189e5933f5088e9"}], "title": "blk-mq: fix possible memleak when register 'hctx' failed", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-50434", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T20:10:56.361002Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-05T20:20:43.844Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-50434", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T20:10:56.361002Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-05T20:10:57.378Z"}}], "cna": {"title": "blk-mq: fix possible memleak when register 'hctx' failed", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "654870789c3c1b9763316ef1c71d7a449127b175", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "cb186eb47fb9dd327bdefa15f0c5fc55c53a40dd", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "02bc8bc6eab03c84373281b85cb6e98747172ff7", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "87fd18016a47ea8ae12641377a390172c4aa97a7", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "e8022da1fa2fdf2fa204b445dd3354e7a66d085a", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "eff45bfbc25a2509a6362dea6e699e14083c693c", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "4b7fafa5f39b15c3a6ca3b95e534d05d6904cc95", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "33e8a3f61814ea30615d0fafaf50477975d6c1ca", "versionType": "git"}, {"status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "lessThan": "4b7a21c57b14fbcd0e1729150189e5933f5088e9", "versionType": "git"}], "programFiles": ["block/blk-mq-sysfs.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.16"}, {"status": "unaffected", "version": "0", "lessThan": "3.16", "versionType": "semver"}, {"status": "unaffected", "version": "4.9.337", "versionType": "semver", "lessThanOrEqual": "4.9.*"}, {"status": "unaffected", "version": "4.14.303", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.270", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.229", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.163", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.86", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.0.16", "versionType": "semver", "lessThanOrEqual": "6.0.*"}, {"status": "unaffected", "version": "6.1.2", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["block/blk-mq-sysfs.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/654870789c3c1b9763316ef1c71d7a449127b175"}, {"url": "https://git.kernel.org/stable/c/cb186eb47fb9dd327bdefa15f0c5fc55c53a40dd"}, {"url": "https://git.kernel.org/stable/c/02bc8bc6eab03c84373281b85cb6e98747172ff7"}, {"url": "https://git.kernel.org/stable/c/87fd18016a47ea8ae12641377a390172c4aa97a7"}, {"url": "https://git.kernel.org/stable/c/e8022da1fa2fdf2fa204b445dd3354e7a66d085a"}, {"url": "https://git.kernel.org/stable/c/eff45bfbc25a2509a6362dea6e699e14083c693c"}, {"url": "https://git.kernel.org/stable/c/4b7fafa5f39b15c3a6ca3b95e534d05d6904cc95"}, {"url": "https://git.kernel.org/stable/c/33e8a3f61814ea30615d0fafaf50477975d6c1ca"}, {"url": "https://git.kernel.org/stable/c/4b7a21c57b14fbcd0e1729150189e5933f5088e9"}], "x_generator": {"engine": "bippy-1.2.0"}, "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'."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.9.337", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.14.303", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.270", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.229", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.163", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.86", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.0.16", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.2", "versionStartIncluding": "3.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.2", "versionStartIncluding": "3.16"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:19:25.292Z"}}}, "cveMetadata": {"cveId": "CVE-2022-50434", "state": "PUBLISHED", "dateUpdated": "2026-11-05T20:20:43.844Z", "dateReserved": "2025-09-17T14:53:07.009Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-10-01T11:42:12.160Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["block/blk-mq-sysfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "654870789c3c1b9763316ef1c71d7a449127b175", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "cb186eb47fb9dd327bdefa15f0c5fc55c53a40dd", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "02bc8bc6eab03c84373281b85cb6e98747172ff7", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "87fd18016a47ea8ae12641377a390172c4aa97a7", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "e8022da1fa2fdf2fa204b445dd3354e7a66d085a", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "eff45bfbc25a2509a6362dea6e699e14083c693c", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "4b7fafa5f39b15c3a6ca3b95e534d05d6904cc95", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "33e8a3f61814ea30615d0fafaf50477975d6c1ca", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}, {"lessThan": "4b7a21c57b14fbcd0e1729150189e5933f5088e9", "status": "affected", "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["block/blk-mq-sysfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.16"}, {"lessThan": "3.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.9.*", "status": "unaffected", "version": "4.9.337", "versionType": "semver"}, {"lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.303", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.270", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.229", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.163", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.86", "versionType": "semver"}, {"lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.16", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5522724B-B972-4CDA-9782-6ACEC2A639E4", "versionEndExcluding": "4.9.337", "versionStartIncluding": "3.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1E7450AD-4739-46F0-B81B-C02E7B35A97B", "versionEndExcluding": "4.14.303", "versionStartIncluding": "4.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AE8904A3-99BE-4E49-9682-1F90A6373F4F", "versionEndExcluding": "4.19.270", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A0C0D95E-414A-445E-941B-3EF6A4D3A093", "versionEndExcluding": "5.4.229", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D05D31FC-BD74-4F9E-B1D8-9CED62BE6F65", "versionEndExcluding": "5.10.163", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "47237296-55D1-4ED4-8075-D00FC85A61EE", "versionEndExcluding": "5.15.86", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C720A569-3D93-4D77-95F6-E2B3A3267D9F", "versionEndExcluding": "6.0.16", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "77239F4B-6BB2-4B9E-A654-36A52396116C", "versionEndExcluding": "6.1.2", "versionStartIncluding": "6.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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'."}], "id": "CVE-2022-50434", "lastModified": "2026-11-05T21:16:58.743", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-50434", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:10:56.361002Z", "version": "2.0.3"}}]}, "published": "2025-10-01T12:15:35.267", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: blk-mq: fix possible memleak when register 'hctx' failed", "id": "2400819", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400819"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50434", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50434\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50434\nhttps://lore.kernel.org/linux-cve-announce/2025100159-CVE-2022-50434-e4db@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-10-02T08:39:38.746636+00:00", "updated": "2025-10-02T08:39:38.746699+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}