143 lines
7.1 KiB
JSON
143 lines
7.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-74335",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-08-15T05:44:03.885Z",
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"datePublished": "2026-08-15T05:58:27.148Z",
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"dateUpdated": "2026-08-17T05:17:26.885Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-17T05:17:26.885Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/helpers.c"
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],
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"versions": [
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{
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"version": "675c3596ff32c040d1dd2e28dd57e83e634b9f60",
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"lessThan": "b7474f4432dd9559ada03b01a8cd3472cd02c61d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "675c3596ff32c040d1dd2e28dd57e83e634b9f60",
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"lessThan": "a4c95b6221cb2972a94ed72663c09bd5b0b6dea4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "675c3596ff32c040d1dd2e28dd57e83e634b9f60",
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"lessThan": "50dff00615522f3ec03449680ca23beb4cfc549c",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/helpers.c"
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],
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"versions": [
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{
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"version": "6.13",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.13",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.40",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.13",
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"versionEndExcluding": "6.18.40"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.13",
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"versionEndExcluding": "7.1.5"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.13",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/b7474f4432dd9559ada03b01a8cd3472cd02c61d"
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},
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{
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"url": "https://git.kernel.org/stable/c/a4c95b6221cb2972a94ed72663c09bd5b0b6dea4"
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},
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{
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"url": "https://git.kernel.org/stable/c/50dff00615522f3ec03449680ca23beb4cfc549c"
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}
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],
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"title": "bpf: Fix NULL pointer dereference in bpf_task_from_vpid()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |