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CVE-2026-80744: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables_offload: suppress WARN_ON_ONCE for ENOMEM in abort path In nft_flow_rule_offload_abort(), WARN_ON_ONCE(err) is triggered on every error during rollback, including -ENOMEM. Memory allocation failures are expected under low-memory conditions and do not indicate a kernel bug. Trace for example: nft_flow_offload_chain() // FLOW_BLOCK_BIND nft_flow_block_chain() nft_chain_offload_cmd() nft_block_offload_cmd() ->ndo_setup_tc() nsim_setup_tc() flow_block_cb_setup_simple() flow_block_cb_alloc() // fails to -ENOMEM The warning was reproduced on the 5.10 stable kernel under memory pressure via fault injection, but the underlying bug exists in mainline as well, as demonstrated by the ENOMEM trace above. The following splat was triggered during nf_tables transaction processing: WARNING: CPU: 0 PID: 8567 at net/netfilter/nf_tables_offload.c:532 nft_flow_rule_offload_abort net/netfilter/nf_tables_offload.c:532 [inline] WARNING: CPU: 0 PID: 8567 at net/netfilter/nf_tables_offload.c:532 nft_flow_rule_offload_commit+0x971/0xcd0 net/netfilter/nf_tables_offload.c:591 Modules linked in: CPU: 0 PID: 8567 Comm: syz-executor.0 Not tainted 5.10.260-syzkaller #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:nft_flow_rule_offload_abort net/netfilter/nf_tables_offload.c:532 [inline] RIP: 0010:nft_flow_rule_offload_commit+0x971/0xcd0 net/netfilter/nf_tables_offload.c:591 Call Trace: nf_tables_commit+0x3bd/0x4bd0 net/netfilter/nf_tables_api.c:8604 nfnetlink_rcv_batch+0xb1e/0x1f20 net/netfilter/nfnetlink.c:509 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:579 [inline] nfnetlink_rcv+0x3b3/0x420 net/netfilter/nfnetlink.c:597 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x6cd/0xa00 net/netfilter/af_netlink.c:1340 netlink_sendmsg+0x906/0xe10 net/netfilter/af_netlink.c:191

    Засегнати продукти

    • Linux Linux: 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди 2319033c4bf8bdb275a9e4e1f7af9bf8a457ad79; 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди 6ee3803c22b72508c5baf1e5aecb21301b714be0; 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди 09bda4b6df222fd1819e8f188c3a6e90caf546d3; 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди 17c132e18ca5d1641ddbaed8d0e6ecfd1d38fa0b; 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди 7ce9851be6f2b019e96e105a9de99715aec6deb4; 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди 4a923fe60939a194777bc605036ce2147ab00c9d; 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди c23620a0fa5b1d80399f894c41a9f78bc29d6235; 63b48c73ff567bbab1f940d6e8f3f48607077a13 преди d02f592064347e0c1e0d84f24941ad338838cc48
    • Linux Linux: 5.5; преди 5.5; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.184 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък

    История

    • 3 септември 2026 Публикувано

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    Първоизточници

    CVE-2026-80744: Linux | freedomonline.bg