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    "cveMetadata": {
        "cveId": "CVE-2024-27010",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-19T14:20:24.208Z",
        "datePublished": "2024-05-01T05:29:23.494Z",
        "dateUpdated": "2026-05-11T20:08:40.124Z"
    },
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                "shortName": "Linux",
                "dateUpdated": "2026-05-11T20:08:40.124Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "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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                    "programFiles": [
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                        "net/core/dev.c",
                        "net/sched/sch_generic.c"
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                    "url": "https://git.kernel.org/stable/c/0f022d32c3eca477fbf79a205243a6123ed0fe11"
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            "title": "net/sched: Fix mirred deadlock on device recursion",
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