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CVE-2024-42321— net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE

EPSS 0.02% · P5
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I. Basic Information for CVE-2024-42321

Vulnerability Information
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Vulnerability Title
net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE
Source: NVD (National Vulnerability Database)
Vulnerability 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]
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 9b52e3f267a6835efd50ed9002d530666d16a411 ~ eb03d9826aa646577342a952d658d4598381c035 -
LinuxLinux 5.2 -

II. Public POCs for CVE-2024-42321

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III. Intelligence Information for CVE-2024-42321

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Same Patch Batch · Linux · 2024-08-17 · 109 CVEs total

CVE-2024-43820dm-raid: Fix WARN_ON_ONCE check for sync_thread in raid_resume
CVE-2024-43833media: v4l: async: Fix NULL pointer dereference in adding ancillary links
CVE-2024-43831media: mediatek: vcodec: Handle invalid decoder vsi
CVE-2024-43832s390/uv: Don't call folio_wait_writeback() without a folio reference
CVE-2024-43830leds: trigger: Unregister sysfs attributes before calling deactivate()
CVE-2024-43829drm/qxl: Add check for drm_cvt_mode
CVE-2024-43828ext4: fix infinite loop when replaying fast_commit
CVE-2024-43827drm/amd/display: Add null check before access structs
CVE-2024-43826nfs: pass explicit offset/count to trace events
CVE-2024-43825iio: Fix the sorting functionality in iio_gts_build_avail_time_table
CVE-2024-43823PCI: keystone: Fix NULL pointer dereference in case of DT error in ks_pcie_setup_rc_app_re
CVE-2024-43824PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()
CVE-2024-43822ASoc: PCM6240: Return directly after a failed devm_kzalloc() in pcmdevice_i2c_probe()
CVE-2024-43821scsi: lpfc: Fix a possible null pointer dereference
CVE-2024-42317mm/huge_memory: avoid PMD-size page cache if needed
CVE-2024-42320s390/dasd: fix error checks in dasd_copy_pair_store()
CVE-2024-42319mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable()
CVE-2024-42318landlock: Don't lose track of restrictions on cred_transfer
CVE-2024-42322ipvs: properly dereference pe in ip_vs_add_service
CVE-2024-42316mm/mglru: fix div-by-zero in vmpressure_calc_level()

Showing top 20 of 109 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-42321

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