233 lines
12 KiB
JSON
233 lines
12 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-2024-27010",
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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": "2024-02-19T14:20:24.208Z",
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"datePublished": "2024-05-01T05:29:23.494Z",
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"dateUpdated": "2026-10-30T12:18:06.388Z"
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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": "2026-10-30T12:18:06.388Z"
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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\nnet/sched: Fix mirred deadlock on device recursion\n\nWhen the mirred action is used on a classful egress qdisc and a packet is\nmirrored or redirected to self we hit a qdisc lock deadlock.\nSee trace below.\n\n[..... other info removed for brevity....]\n[ 82.890906]\n[ 82.890906] ============================================\n[ 82.890906] WARNING: possible recursive locking detected\n[ 82.890906] 6.8.0-05205-g77fadd89fe2d-dirty #213 Tainted: G W\n[ 82.890906] --------------------------------------------\n[ 82.890906] ping/418 is trying to acquire lock:\n[ 82.890906] ffff888006994110 (&sch->q.lock){+.-.}-{3:3}, at:\n__dev_queue_xmit+0x1778/0x3550\n[ 82.890906]\n[ 82.890906] but task is already holding lock:\n[ 82.890906] ffff888006994110 (&sch->q.lock){+.-.}-{3:3}, at:\n__dev_queue_xmit+0x1778/0x3550\n[ 82.890906]\n[ 82.890906] other info that might help us debug this:\n[ 82.890906] Possible unsafe locking scenario:\n[ 82.890906]\n[ 82.890906] CPU0\n[ 82.890906] ----\n[ 82.890906] lock(&sch->q.lock);\n[ 82.890906] lock(&sch->q.lock);\n[ 82.890906]\n[ 82.890906] *** DEADLOCK ***\n[ 82.890906]\n[..... other info removed for brevity....]\n\nExample setup (eth0->eth0) to recreate\ntc qdisc add dev eth0 root handle 1: htb default 30\ntc filter add dev eth0 handle 1: protocol ip prio 2 matchall \\\n action mirred egress redirect dev eth0\n\nAnother example(eth0->eth1->eth0) to recreate\ntc qdisc add dev eth0 root handle 1: htb default 30\ntc filter add dev eth0 handle 1: protocol ip prio 2 matchall \\\n action mirred egress redirect dev eth1\n\ntc qdisc add dev eth1 root handle 1: htb default 30\ntc filter add dev eth1 handle 1: protocol ip prio 2 matchall \\\n action mirred egress redirect dev eth0\n\nWe fix this by adding an owner field (CPU id) to struct Qdisc set after\nroot qdisc is entered. When the softirq enters it a second time, if the\nqdisc owner is the same CPU, the packet is dropped to break the loop."
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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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"include/net/sch_generic.h",
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"net/core/dev.c",
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"net/sched/sch_generic.c"
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],
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"versions": [
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"lessThan": "09d2e807aeb8e4f2e5eac4a3064f28dcf19b9c1e",
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"status": "affected",
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"version": "e578d9c02587d57bfa7b560767c698a668a468c6",
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"status": "affected",
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},
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{
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"defaultStatus": "affected",
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"programFiles": [
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"include/net/sch_generic.h",
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"net/core/dev.c",
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"net/sched/sch_generic.c"
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],
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"versions": [
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"version": "4.2",
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"version": "0",
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"status": "unaffected",
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},
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{
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"version": "6.1.191",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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},
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{
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"version": "6.6.156",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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},
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{
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"version": "6.8.8",
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"lessThanOrEqual": "6.8.*",
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"status": "unaffected",
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},
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{
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"version": "6.9",
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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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"nodes": [
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"versionStartIncluding": "4.2",
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"url": "https://git.kernel.org/stable/c/09d2e807aeb8e4f2e5eac4a3064f28dcf19b9c1e"
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}
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"title": "net/sched: Fix mirred deadlock on device recursion",
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"timestamp": "2024-07-17T15:03:35.408191Z",
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"id": "CVE-2024-27010",
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