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Huawei EulerOS: CVE-2024-42321: kernel security update

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Huawei EulerOS: CVE-2024-42321: kernel security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/17/2024
Created
10/10/2024
Added
10/09/2024
Modified
10/09/2024

Description

In the Linux kernel, the following vulnerability has been resolved: net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE The following splat is easy to reproduce upstream as well as in -stable kernels. Florian Westphal provided the following commit: d1dab4f71d37 ("net: add and use __skb_get_hash_symmetric_net") but this complementary fix has been also suggested by Willem de Bruijn and it can be easily backported to -stable kernel which consists in using DEBUG_NET_WARN_ON_ONCE instead to silence the following splat given __skb_get_hash() is used by the nftables tracing infrastructure to to identify packets in traces. [69133.561393] ------------[ cut here ]------------ [69133.561404] WARNING: CPU: 0 PID: 43576 at net/core/flow_dissector.c:1104 __skb_flow_dissect+0x134f/ [...] [69133.561944] CPU: 0 PID: 43576 Comm: socat Not tainted 6.10.0-rc7+ #379 [69133.561959] RIP: 0010:__skb_flow_dissect+0x134f/0x2ad0 [69133.561970] Code: 83 f9 04 0f 84 b3 00 00 00 45 85 c9 0f 84 aa 00 00 00 41 83 f9 02 0f 84 81 fc ff ff 44 0f b7 b4 24 80 00 00 00 e9 8b f9 ff ff <0f> 0b e9 20 f3 ff ff 41 f6 c6 20 0f 84 e4 ef ff ff 48 8d 7b 12 e8 [69133.561979] RSP: 0018:ffffc90000006fc0 EFLAGS: 00010246 [69133.561988] RAX: 0000000000000000 RBX: ffffffff82f33e20 RCX: ffffffff81ab7e19 [69133.561994] RDX: dffffc0000000000 RSI: ffffc90000007388 RDI: ffff888103a1b418 [69133.562001] RBP: ffffc90000007310 R08: 0000000000000000 R09: 0000000000000000 [69133.562007] R10: ffffc90000007388 R11: ffffffff810cface R12: ffff888103a1b400 [69133.562013] R13: 0000000000000000 R14: ffffffff82f33e2a R15: ffffffff82f33e28 [69133.562020] FS:00007f40f7131740(0000) GS:ffff888390800000(0000) knlGS:0000000000000000 [69133.562027] CS:0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [69133.562033] CR2: 00007f40f7346ee0 CR3: 000000015d200001 CR4: 00000000001706f0 [69133.562040] Call Trace: [69133.562044]<IRQ> [69133.562049]? __warn+0x9f/0x1a0 [ 1211.841384]? __skb_flow_dissect+0x107e/0x2860 [...] [ 1211.841496]? bpf_flow_dissect+0x160/0x160 [ 1211.841753]__skb_get_hash+0x97/0x280 [ 1211.841765]? __skb_get_hash_symmetric+0x230/0x230 [ 1211.841776]? mod_find+0xbf/0xe0 [ 1211.841786]? get_stack_info_noinstr+0x12/0xe0 [ 1211.841798]? bpf_ksym_find+0x56/0xe0 [ 1211.841807]? __rcu_read_unlock+0x2a/0x70 [ 1211.841819]nft_trace_init+0x1b9/0x1c0 [nf_tables] [ 1211.841895]? nft_trace_notify+0x830/0x830 [nf_tables] [ 1211.841964]? get_stack_info+0x2b/0x80 [ 1211.841975]? nft_do_chain_arp+0x80/0x80 [nf_tables] [ 1211.842044]nft_do_chain+0x79c/0x850 [nf_tables]

Solution(s)

  • huawei-euleros-2_0_sp11-upgrade-bpftool
  • huawei-euleros-2_0_sp11-upgrade-kernel
  • huawei-euleros-2_0_sp11-upgrade-kernel-abi-stablelists
  • huawei-euleros-2_0_sp11-upgrade-kernel-tools
  • huawei-euleros-2_0_sp11-upgrade-kernel-tools-libs
  • huawei-euleros-2_0_sp11-upgrade-python3-perf

References

  • https://attackerkb.com/topics/cve-2024-42321
  • CVE - 2024-42321
  • EulerOS-SA-2024-2585
  • 引用
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