{"api_version":"1","generated_at":"2026-07-23T18:46:51+00:00","cve":"CVE-2024-36939","urls":{"html":"https://cve.report/CVE-2024-36939","api":"https://cve.report/api/cve/CVE-2024-36939.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2024-36939","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-36939"},"summary":{"title":"nfs: Handle error of rpc_proc_register() in nfs_net_init().","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfs: Handle error of rpc_proc_register() in nfs_net_init().\n\nsyzkaller reported a warning [0] triggered while destroying immature\nnetns.\n\nrpc_proc_register() was called in init_nfs_fs(), but its error\nhas been ignored since at least the initial commit 1da177e4c3f4\n(\"Linux-2.6.12-rc2\").\n\nRecently, commit d47151b79e32 (\"nfs: expose /proc/net/sunrpc/nfs\nin net namespaces\") converted the procfs to per-netns and made\nthe problem more visible.\n\nEven when rpc_proc_register() fails, nfs_net_init() could succeed,\nand thus nfs_net_exit() will be called while destroying the netns.\n\nThen, remove_proc_entry() will be called for non-existing proc\ndirectory and trigger the warning below.\n\nLet's handle the error of rpc_proc_register() properly in nfs_net_init().\n\n[0]:\nname 'nfs'\nWARNING: CPU: 1 PID: 1710 at fs/proc/generic.c:711 remove_proc_entry+0x1bb/0x2d0 fs/proc/generic.c:711\nModules linked in:\nCPU: 1 PID: 1710 Comm: syz-executor.2 Not tainted 6.8.0-12822-gcd51db110a7e #12\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nRIP: 0010:remove_proc_entry+0x1bb/0x2d0 fs/proc/generic.c:711\nCode: 41 5d 41 5e c3 e8 85 09 b5 ff 48 c7 c7 88 58 64 86 e8 09 0e 71 02 e8 74 09 b5 ff 4c 89 e6 48 c7 c7 de 1b 80 84 e8 c5 ad 97 ff <0f> 0b eb b1 e8 5c 09 b5 ff 48 c7 c7 88 58 64 86 e8 e0 0d 71 02 eb\nRSP: 0018:ffffc9000c6d7ce0 EFLAGS: 00010286\nRAX: 0000000000000000 RBX: ffff8880422b8b00 RCX: ffffffff8110503c\nRDX: ffff888030652f00 RSI: ffffffff81105045 RDI: 0000000000000001\nRBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: ffffffff81bb62cb R12: ffffffff84807ffc\nR13: ffff88804ad6fcc0 R14: ffffffff84807ffc R15: ffffffff85741ff8\nFS:  00007f30cfba8640(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ff51afe8000 CR3: 000000005a60a005 CR4: 0000000000770ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n <TASK>\n rpc_proc_unregister+0x64/0x70 net/sunrpc/stats.c:310\n nfs_net_exit+0x1c/0x30 fs/nfs/inode.c:2438\n ops_exit_list+0x62/0xb0 net/core/net_namespace.c:170\n setup_net+0x46c/0x660 net/core/net_namespace.c:372\n copy_net_ns+0x244/0x590 net/core/net_namespace.c:505\n create_new_namespaces+0x2ed/0x770 kernel/nsproxy.c:110\n unshare_nsproxy_namespaces+0xae/0x160 kernel/nsproxy.c:228\n ksys_unshare+0x342/0x760 kernel/fork.c:3322\n __do_sys_unshare kernel/fork.c:3393 [inline]\n __se_sys_unshare kernel/fork.c:3391 [inline]\n __x64_sys_unshare+0x1f/0x30 kernel/fork.c:3391\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x4f/0x110 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x46/0x4e\nRIP: 0033:0x7f30d0febe5d\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\nRSP: 002b:00007f30cfba7cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110\nRAX: ffffffffffffffda RBX: 00000000004bbf80 RCX: 00007f30d0febe5d\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000006c020600\nRBP: 00000000004bbf80 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002\nR13: 000000000000000b R14: 00007f30d104c530 R15: 0000000000000000\n </TASK>","state":"PUBLISHED","assigner":"Linux","published_at":"2024-05-30 16:15:16","updated_at":"2026-05-12 12:16:50"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"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"}}],"references":[{"url":"https://git.kernel.org/stable/c/8a1f89c98dcc542dd6d287e573523714702e0f9c","name":"https://git.kernel.org/stable/c/8a1f89c98dcc542dd6d287e573523714702e0f9c","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","name":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","refsource":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9909dde2e53a19585212c32fe3eda482b5faaaa3","name":"https://git.kernel.org/stable/c/9909dde2e53a19585212c32fe3eda482b5faaaa3","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8ae63bd858691bee0e2a92571f2fbb36a4d86d65","name":"https://git.kernel.org/stable/c/8ae63bd858691bee0e2a92571f2fbb36a4d86d65","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b33ca18c3a1190208dfd569c4fa8a2f93084709f","name":"https://git.kernel.org/stable/c/b33ca18c3a1190208dfd569c4fa8a2f93084709f","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d4891d817350c67392d4731536945f3809a2a0ba","name":"https://git.kernel.org/stable/c/d4891d817350c67392d4731536945f3809a2a0ba","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html","name":"https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/24457f1be29f1e7042e50a7749f5c2dde8c433c8","name":"https://git.kernel.org/stable/c/24457f1be29f1e7042e50a7749f5c2dde8c433c8","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ea6ce93327bd2c8a0c6cf6f2f0e800f3b778f021","name":"https://git.kernel.org/stable/c/ea6ce93327bd2c8a0c6cf6f2f0e800f3b778f021","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-36939","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-36939","name":"NVD vulnerability 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Program Container"},{"affected":[{"defaultStatus":"unknown","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"custom"}]}],"providerMetadata":{"dateUpdated":"2026-05-12T11:54:17.924Z","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","shortName":"siemens-SADP"},"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}],"x_adpType":"supplier"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b33ca18c3a1190208dfd569c4fa8a2f93084709f","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"d4891d817350c67392d4731536945f3809a2a0ba","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"ea6ce93327bd2c8a0c6cf6f2f0e800f3b778f021","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"8ae63bd858691bee0e2a92571f2fbb36a4d86d65","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"8a1f89c98dcc542dd6d287e573523714702e0f9c","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"9909dde2e53a19585212c32fe3eda482b5faaaa3","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"24457f1be29f1e7042e50a7749f5c2dde8c433c8","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.276","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.217","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.159","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.91","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.31","versionType":"semver"},{"lessThanOrEqual":"6.8.*","status":"unaffected","version":"6.8.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.9","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.276","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.217","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.159","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.91","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.31","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.8.10","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.9","versionStartIncluding":"2.6.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfs: Handle error of rpc_proc_register() in nfs_net_init().\n\nsyzkaller reported a warning [0] triggered while destroying immature\nnetns.\n\nrpc_proc_register() was called in init_nfs_fs(), but its error\nhas been ignored since at least the initial commit 1da177e4c3f4\n(\"Linux-2.6.12-rc2\").\n\nRecently, commit d47151b79e32 (\"nfs: expose /proc/net/sunrpc/nfs\nin net namespaces\") converted the procfs to per-netns and made\nthe problem more visible.\n\nEven when rpc_proc_register() fails, nfs_net_init() could succeed,\nand thus nfs_net_exit() will be called while destroying the netns.\n\nThen, remove_proc_entry() will be called for non-existing proc\ndirectory and trigger the warning below.\n\nLet's handle the error of rpc_proc_register() properly in nfs_net_init().\n\n[0]:\nname 'nfs'\nWARNING: CPU: 1 PID: 1710 at fs/proc/generic.c:711 remove_proc_entry+0x1bb/0x2d0 fs/proc/generic.c:711\nModules linked in:\nCPU: 1 PID: 1710 Comm: syz-executor.2 Not tainted 6.8.0-12822-gcd51db110a7e #12\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nRIP: 0010:remove_proc_entry+0x1bb/0x2d0 fs/proc/generic.c:711\nCode: 41 5d 41 5e c3 e8 85 09 b5 ff 48 c7 c7 88 58 64 86 e8 09 0e 71 02 e8 74 09 b5 ff 4c 89 e6 48 c7 c7 de 1b 80 84 e8 c5 ad 97 ff <0f> 0b eb b1 e8 5c 09 b5 ff 48 c7 c7 88 58 64 86 e8 e0 0d 71 02 eb\nRSP: 0018:ffffc9000c6d7ce0 EFLAGS: 00010286\nRAX: 0000000000000000 RBX: ffff8880422b8b00 RCX: ffffffff8110503c\nRDX: ffff888030652f00 RSI: ffffffff81105045 RDI: 0000000000000001\nRBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: ffffffff81bb62cb R12: ffffffff84807ffc\nR13: ffff88804ad6fcc0 R14: ffffffff84807ffc R15: ffffffff85741ff8\nFS:  00007f30cfba8640(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ff51afe8000 CR3: 000000005a60a005 CR4: 0000000000770ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n <TASK>\n rpc_proc_unregister+0x64/0x70 net/sunrpc/stats.c:310\n nfs_net_exit+0x1c/0x30 fs/nfs/inode.c:2438\n ops_exit_list+0x62/0xb0 net/core/net_namespace.c:170\n setup_net+0x46c/0x660 net/core/net_namespace.c:372\n copy_net_ns+0x244/0x590 net/core/net_namespace.c:505\n create_new_namespaces+0x2ed/0x770 kernel/nsproxy.c:110\n unshare_nsproxy_namespaces+0xae/0x160 kernel/nsproxy.c:228\n ksys_unshare+0x342/0x760 kernel/fork.c:3322\n __do_sys_unshare kernel/fork.c:3393 [inline]\n __se_sys_unshare kernel/fork.c:3391 [inline]\n __x64_sys_unshare+0x1f/0x30 kernel/fork.c:3391\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x4f/0x110 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x46/0x4e\nRIP: 0033:0x7f30d0febe5d\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\nRSP: 002b:00007f30cfba7cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110\nRAX: ffffffffffffffda RBX: 00000000004bbf80 RCX: 00007f30d0febe5d\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000006c020600\nRBP: 00000000004bbf80 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002\nR13: 000000000000000b R14: 00007f30d104c530 R15: 0000000000000000\n </TASK>"}],"providerMetadata":{"dateUpdated":"2026-05-11T20:17:25.913Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b33ca18c3a1190208dfd569c4fa8a2f93084709f"},{"url":"https://git.kernel.org/stable/c/d4891d817350c67392d4731536945f3809a2a0ba"},{"url":"https://git.kernel.org/stable/c/ea6ce93327bd2c8a0c6cf6f2f0e800f3b778f021"},{"url":"https://git.kernel.org/stable/c/8ae63bd858691bee0e2a92571f2fbb36a4d86d65"},{"url":"https://git.kernel.org/stable/c/8a1f89c98dcc542dd6d287e573523714702e0f9c"},{"url":"https://git.kernel.org/stable/c/9909dde2e53a19585212c32fe3eda482b5faaaa3"},{"url":"https://git.kernel.org/stable/c/24457f1be29f1e7042e50a7749f5c2dde8c433c8"}],"title":"nfs: Handle error of rpc_proc_register() in nfs_net_init().","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2024-36939","datePublished":"2024-05-30T15:29:27.517Z","dateReserved":"2024-05-30T15:25:07.071Z","dateUpdated":"2026-05-12T11:54:17.924Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2024-05-30 16:15:16","lastModifiedDate":"2026-05-12 12:16:50","problem_types":["NVD-CWE-noinfo"],"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}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"5.4.276","matchCriteriaId":"C64BD9F2-8D73-4B71-A2F0-5329EC29C128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.217","matchCriteriaId":"AC67C71C-2044-40BA-B590-61E562F69F89"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.159","matchCriteriaId":"F16678CD-F7C6-4BF6-ABA8-E7600857197B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.91","matchCriteriaId":"4F8C886C-75AA-469B-A6A9-12BF1A29C0D5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.31","matchCriteriaId":"CDDB1F69-36AC-41C1-9192-E7CCEF5FFC00"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.8.10","matchCriteriaId":"6A6B920C-8D8F-4130-86B4-AD334F4CF2E3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*","matchCriteriaId":"6F62EECE-8FB1-4D57-85D8-CB9E23CF313C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*","matchCriteriaId":"4F76C298-81DC-43E4-8FC9-DC005A2116EF"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*","matchCriteriaId":"0AB349B2-3F78-4197-882B-90ADB3BF645A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*","matchCriteriaId":"6AC88830-A9BC-4607-B572-A4B502FC9FD0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*","matchCriteriaId":"476CB3A5-D022-4F13-AAEF-CB6A5785516A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*","matchCriteriaId":"22BEDD49-2C6D-402D-9DBF-6646F6ECD10B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*","matchCriteriaId":"DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*","matchCriteriaId":"52048DDA-FC5A-4363-95A0-A6357B4D7F8C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*","matchCriteriaId":"A06B2CCF-3F43-4FA9-8773-C83C3F5764B2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*","matchCriteriaId":"F850DCEC-E08B-4317-A33B-D2DCF39F601B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:*","matchCriteriaId":"91326417-E981-482E-A5A3-28BC1327521B"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","matchCriteriaId":"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2024","CveId":"36939","Ordinal":"1","Title":"nfs: Handle error of rpc_proc_register() in nfs_net_init().","CVE":"CVE-2024-36939","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"36939","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfs: Handle error of rpc_proc_register() in nfs_net_init().\n\nsyzkaller reported a warning [0] triggered while destroying immature\nnetns.\n\nrpc_proc_register() was called in init_nfs_fs(), but its error\nhas been ignored since at least the initial commit 1da177e4c3f4\n(\"Linux-2.6.12-rc2\").\n\nRecently, commit d47151b79e32 (\"nfs: expose /proc/net/sunrpc/nfs\nin net namespaces\") converted the procfs to per-netns and made\nthe problem more visible.\n\nEven when rpc_proc_register() fails, nfs_net_init() could succeed,\nand thus nfs_net_exit() will be called while destroying the netns.\n\nThen, remove_proc_entry() will be called for non-existing proc\ndirectory and trigger the warning below.\n\nLet's handle the error of rpc_proc_register() properly in nfs_net_init().\n\n[0]:\nname 'nfs'\nWARNING: CPU: 1 PID: 1710 at fs/proc/generic.c:711 remove_proc_entry+0x1bb/0x2d0 fs/proc/generic.c:711\nModules linked in:\nCPU: 1 PID: 1710 Comm: syz-executor.2 Not tainted 6.8.0-12822-gcd51db110a7e #12\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nRIP: 0010:remove_proc_entry+0x1bb/0x2d0 fs/proc/generic.c:711\nCode: 41 5d 41 5e c3 e8 85 09 b5 ff 48 c7 c7 88 58 64 86 e8 09 0e 71 02 e8 74 09 b5 ff 4c 89 e6 48 c7 c7 de 1b 80 84 e8 c5 ad 97 ff <0f> 0b eb b1 e8 5c 09 b5 ff 48 c7 c7 88 58 64 86 e8 e0 0d 71 02 eb\nRSP: 0018:ffffc9000c6d7ce0 EFLAGS: 00010286\nRAX: 0000000000000000 RBX: ffff8880422b8b00 RCX: ffffffff8110503c\nRDX: ffff888030652f00 RSI: ffffffff81105045 RDI: 0000000000000001\nRBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: ffffffff81bb62cb R12: ffffffff84807ffc\nR13: ffff88804ad6fcc0 R14: ffffffff84807ffc R15: ffffffff85741ff8\nFS:  00007f30cfba8640(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ff51afe8000 CR3: 000000005a60a005 CR4: 0000000000770ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n <TASK>\n rpc_proc_unregister+0x64/0x70 net/sunrpc/stats.c:310\n nfs_net_exit+0x1c/0x30 fs/nfs/inode.c:2438\n ops_exit_list+0x62/0xb0 net/core/net_namespace.c:170\n setup_net+0x46c/0x660 net/core/net_namespace.c:372\n copy_net_ns+0x244/0x590 net/core/net_namespace.c:505\n create_new_namespaces+0x2ed/0x770 kernel/nsproxy.c:110\n unshare_nsproxy_namespaces+0xae/0x160 kernel/nsproxy.c:228\n ksys_unshare+0x342/0x760 kernel/fork.c:3322\n __do_sys_unshare kernel/fork.c:3393 [inline]\n __se_sys_unshare kernel/fork.c:3391 [inline]\n __x64_sys_unshare+0x1f/0x30 kernel/fork.c:3391\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x4f/0x110 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x46/0x4e\nRIP: 0033:0x7f30d0febe5d\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\nRSP: 002b:00007f30cfba7cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110\nRAX: ffffffffffffffda RBX: 00000000004bbf80 RCX: 00007f30d0febe5d\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000006c020600\nRBP: 00000000004bbf80 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002\nR13: 000000000000000b R14: 00007f30d104c530 R15: 0000000000000000\n </TASK>","Type":"Description","Title":"nfs: Handle error of rpc_proc_register() in nfs_net_init()."}]}}}