{"api_version":"1","generated_at":"2026-08-17T11:51:32+00:00","cve":"CVE-2026-74335","urls":{"html":"https://cve.report/CVE-2026-74335","api":"https://cve.report/api/cve/CVE-2026-74335.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74335","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74335"},"summary":{"title":"bpf: Fix NULL pointer dereference in bpf_task_from_vpid()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NULL pointer dereference in bpf_task_from_vpid()\n\nbpf_task_from_vpid() looks up a task in the pid namespace of the\ncurrent task, via find_task_by_vpid():\n\n  find_task_by_vpid(vpid)\n    find_task_by_pid_ns(vpid, task_active_pid_ns(current))\n      find_pid_ns(nr, ns) -> idr_find(&ns->idr, nr)\n\ncgroup_skb programs run in softirq, which may interrupt a task that is\nitself in do_exit(). Once that task has passed\nexit_notify() -> release_task() -> __unhash_process(), its thread_pid is\ncleared, so task_active_pid_ns(current) returns NULL and find_pid_ns()\ndereferences &NULL->idr:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000050\n  RIP: 0010:idr_find+0x11/0x30 lib/idr.c:176\n  Call Trace:\n   <IRQ>\n   find_pid_ns kernel/pid.c:370 [inline]\n   find_task_by_pid_ns+0x3b/0xe0 kernel/pid.c:485\n   bpf_task_from_vpid+0x5b/0x200 kernel/bpf/helpers.c:2916\n   bpf_prog_run_array_cg+0x17e/0x530 kernel/bpf/cgroup.c:81\n   __cgroup_bpf_run_filter_skb+0x12b/0x250 kernel/bpf/cgroup.c:1612\n   sk_filter_trim_cap+0x1dc/0x4c0 net/core/filter.c:148\n   tcp_v4_rcv+0x18d1/0x2200 net/ipv4/tcp_ipv4.c:2223\n   </IRQ>\n   <TASK>\n   do_exit+0xa63/0x1270 kernel/exit.c:1010\n   get_signal+0x141c/0x1530 kernel/signal.c:3037\n\nBail out when current has no pid namespace.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:34","updated_at":"2026-08-17 06:19:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/50dff00615522f3ec03449680ca23beb4cfc549c","name":"https://git.kernel.org/stable/c/50dff00615522f3ec03449680ca23beb4cfc549c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b7474f4432dd9559ada03b01a8cd3472cd02c61d","name":"https://git.kernel.org/stable/c/b7474f4432dd9559ada03b01a8cd3472cd02c61d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a4c95b6221cb2972a94ed72663c09bd5b0b6dea4","name":"https://git.kernel.org/stable/c/a4c95b6221cb2972a94ed72663c09bd5b0b6dea4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74335","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74335","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 675c3596ff32c040d1dd2e28dd57e83e634b9f60 b7474f4432dd9559ada03b01a8cd3472cd02c61d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 675c3596ff32c040d1dd2e28dd57e83e634b9f60 a4c95b6221cb2972a94ed72663c09bd5b0b6dea4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 675c3596ff32c040d1dd2e28dd57e83e634b9f60 50dff00615522f3ec03449680ca23beb4cfc549c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"74335","cve":"CVE-2026-74335","epss":"0.001660000","percentile":"0.062650000","score_date":"2026-08-16","updated_at":"2026-08-17 00:01:05"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/helpers.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b7474f4432dd9559ada03b01a8cd3472cd02c61d","status":"affected","version":"675c3596ff32c040d1dd2e28dd57e83e634b9f60","versionType":"git"},{"lessThan":"a4c95b6221cb2972a94ed72663c09bd5b0b6dea4","status":"affected","version":"675c3596ff32c040d1dd2e28dd57e83e634b9f60","versionType":"git"},{"lessThan":"50dff00615522f3ec03449680ca23beb4cfc549c","status":"affected","version":"675c3596ff32c040d1dd2e28dd57e83e634b9f60","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/helpers.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NULL pointer dereference in bpf_task_from_vpid()\n\nbpf_task_from_vpid() looks up a task in the pid namespace of the\ncurrent task, via find_task_by_vpid():\n\n  find_task_by_vpid(vpid)\n    find_task_by_pid_ns(vpid, task_active_pid_ns(current))\n      find_pid_ns(nr, ns) -> idr_find(&ns->idr, nr)\n\ncgroup_skb programs run in softirq, which may interrupt a task that is\nitself in do_exit(). Once that task has passed\nexit_notify() -> release_task() -> __unhash_process(), its thread_pid is\ncleared, so task_active_pid_ns(current) returns NULL and find_pid_ns()\ndereferences &NULL->idr:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000050\n  RIP: 0010:idr_find+0x11/0x30 lib/idr.c:176\n  Call Trace:\n   <IRQ>\n   find_pid_ns kernel/pid.c:370 [inline]\n   find_task_by_pid_ns+0x3b/0xe0 kernel/pid.c:485\n   bpf_task_from_vpid+0x5b/0x200 kernel/bpf/helpers.c:2916\n   bpf_prog_run_array_cg+0x17e/0x530 kernel/bpf/cgroup.c:81\n   __cgroup_bpf_run_filter_skb+0x12b/0x250 kernel/bpf/cgroup.c:1612\n   sk_filter_trim_cap+0x1dc/0x4c0 net/core/filter.c:148\n   tcp_v4_rcv+0x18d1/0x2200 net/ipv4/tcp_ipv4.c:2223\n   </IRQ>\n   <TASK>\n   do_exit+0xa63/0x1270 kernel/exit.c:1010\n   get_signal+0x141c/0x1530 kernel/signal.c:3037\n\nBail out when current has no pid namespace."}],"providerMetadata":{"dateUpdated":"2026-08-17T05:17:26.885Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b7474f4432dd9559ada03b01a8cd3472cd02c61d"},{"url":"https://git.kernel.org/stable/c/a4c95b6221cb2972a94ed72663c09bd5b0b6dea4"},{"url":"https://git.kernel.org/stable/c/50dff00615522f3ec03449680ca23beb4cfc549c"}],"title":"bpf: Fix NULL pointer dereference in bpf_task_from_vpid()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74335","datePublished":"2026-08-15T05:58:27.148Z","dateReserved":"2026-08-15T05:44:03.885Z","dateUpdated":"2026-08-17T05:17:26.885Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:34","lastModifiedDate":"2026-08-17 06:19:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74335","Ordinal":"1","Title":"bpf: Fix NULL pointer dereference in bpf_task_from_vpid()","CVE":"CVE-2026-74335","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74335","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NULL pointer dereference in bpf_task_from_vpid()\n\nbpf_task_from_vpid() looks up a task in the pid namespace of the\ncurrent task, via find_task_by_vpid():\n\n  find_task_by_vpid(vpid)\n    find_task_by_pid_ns(vpid, task_active_pid_ns(current))\n      find_pid_ns(nr, ns) -> idr_find(&ns->idr, nr)\n\ncgroup_skb programs run in softirq, which may interrupt a task that is\nitself in do_exit(). Once that task has passed\nexit_notify() -> release_task() -> __unhash_process(), its thread_pid is\ncleared, so task_active_pid_ns(current) returns NULL and find_pid_ns()\ndereferences &NULL->idr:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000050\n  RIP: 0010:idr_find+0x11/0x30 lib/idr.c:176\n  Call Trace:\n   <IRQ>\n   find_pid_ns kernel/pid.c:370 [inline]\n   find_task_by_pid_ns+0x3b/0xe0 kernel/pid.c:485\n   bpf_task_from_vpid+0x5b/0x200 kernel/bpf/helpers.c:2916\n   bpf_prog_run_array_cg+0x17e/0x530 kernel/bpf/cgroup.c:81\n   __cgroup_bpf_run_filter_skb+0x12b/0x250 kernel/bpf/cgroup.c:1612\n   sk_filter_trim_cap+0x1dc/0x4c0 net/core/filter.c:148\n   tcp_v4_rcv+0x18d1/0x2200 net/ipv4/tcp_ipv4.c:2223\n   </IRQ>\n   <TASK>\n   do_exit+0xa63/0x1270 kernel/exit.c:1010\n   get_signal+0x141c/0x1530 kernel/signal.c:3037\n\nBail out when current has no pid namespace.","Type":"Description","Title":"bpf: Fix NULL pointer dereference in bpf_task_from_vpid()"}]}}}