{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-49558","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T02:08:31.591Z","datePublished":"2025-02-26T02:14:04.575Z","dateUpdated":"2025-06-19T12:39:10.625Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-06-19T12:39:10.625Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: double hook unregistration in netns path\n\n__nft_release_hooks() is called from pre_netns exit path which\nunregisters the hooks, then the NETDEV_UNREGISTER event is triggered\nwhich unregisters the hooks again.\n\n[  565.221461] WARNING: CPU: 18 PID: 193 at net/netfilter/core.c:495 __nf_unregister_net_hook+0x247/0x270\n[...]\n[  565.246890] CPU: 18 PID: 193 Comm: kworker/u64:1 Tainted: G            E     5.18.0-rc7+ #27\n[  565.253682] Workqueue: netns cleanup_net\n[  565.257059] RIP: 0010:__nf_unregister_net_hook+0x247/0x270\n[...]\n[  565.297120] Call Trace:\n[  565.300900]  <TASK>\n[  565.304683]  nf_tables_flowtable_event+0x16a/0x220 [nf_tables]\n[  565.308518]  raw_notifier_call_chain+0x63/0x80\n[  565.312386]  unregister_netdevice_many+0x54f/0xb50\n\nUnregister and destroy netdev hook from netns pre_exit via kfree_rcu\nso the NETDEV_UNREGISTER path see unregistered hooks."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"],"versions":[{"version":"b110391d1e806167254d3c7ae5d637191d913175","lessThan":"b09e6ccf0d12f9356e8e3508d3e3dce126298538","status":"affected","versionType":"git"},{"version":"0a0e5d47670b753d3dbf88f3c77a97a30864d9bd","lessThan":"3fac8ce48fa9fd61ee9056d3ed48b2edefca8b82","status":"affected","versionType":"git"},{"version":"767d1216bff82507c945e92fe719dff2083bb2f4","lessThan":"9c413a8c8bb49cc16796371805ecb260e885bb2b","status":"affected","versionType":"git"},{"version":"767d1216bff82507c945e92fe719dff2083bb2f4","lessThan":"a3940dcf552f2393d1e8f263b386593f98abe829","status":"affected","versionType":"git"},{"version":"767d1216bff82507c945e92fe719dff2083bb2f4","lessThan":"86c0154f4c3a56c5db8b9dd09e3ce885382c2c19","status":"affected","versionType":"git"},{"version":"767d1216bff82507c945e92fe719dff2083bb2f4","lessThan":"f9a43007d3f7ba76d5e7f9421094f00f2ef202f8","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"],"versions":[{"version":"5.11","status":"affected"},{"version":"0","lessThan":"5.11","status":"unaffected","versionType":"semver"},{"version":"5.4.262","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.198","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.45","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.17.13","lessThanOrEqual":"5.17.*","status":"unaffected","versionType":"semver"},{"version":"5.18.2","lessThanOrEqual":"5.18.*","status":"unaffected","versionType":"semver"},{"version":"5.19","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":"5.4.99","versionEndExcluding":"5.4.262"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.17","versionEndExcluding":"5.10.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.45"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.17.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.18.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b09e6ccf0d12f9356e8e3508d3e3dce126298538"},{"url":"https://git.kernel.org/stable/c/3fac8ce48fa9fd61ee9056d3ed48b2edefca8b82"},{"url":"https://git.kernel.org/stable/c/9c413a8c8bb49cc16796371805ecb260e885bb2b"},{"url":"https://git.kernel.org/stable/c/a3940dcf552f2393d1e8f263b386593f98abe829"},{"url":"https://git.kernel.org/stable/c/86c0154f4c3a56c5db8b9dd09e3ce885382c2c19"},{"url":"https://git.kernel.org/stable/c/f9a43007d3f7ba76d5e7f9421094f00f2ef202f8"}],"title":"netfilter: nf_tables: double hook unregistration in netns path","x_generator":{"engine":"bippy-1.2.0"}}}}