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CVE-2025-38617— net/packet: fix a race in packet_set_ring() and packet_notifier()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于packet_set_ring和packet_notifier竞争条件可能导致未定义行为。

CVSS 7.8 · High EPSS 0.40% · P33

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 18f13f2a83eb81be349a9757ba2141ff1da9ad73 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 7da733f117533e9b2ebbd530a22ae4028713955c affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< ba2257034755ae773722f15f4c3ad1dcdad15ca9 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 7de07705007c7e34995a5599aaab1d23e762d7ca affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 88caf46db8239e6471413d28aabaa6b8bd552805 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< f2e8fcfd2b1bc754920108b7f2cd75082c5a18df affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e50ccfaca9e3c671cae917dcb994831a859cf588 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< f1791fd7b845bea0ce9674fcf2febee7bc87a893 affected
… +12 more rows
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I. Basic Information for CVE-2025-38617

Vulnerability Information
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Vulnerability Title
net/packet: fix a race in packet_set_ring() and packet_notifier()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/packet: fix a race in packet_set_ring() and packet_notifier() When packet_set_ring() releases po->bind_lock, another thread can run packet_notifier() and process an NETDEV_UP event. This race and the fix are both similar to that of commit 15fe076edea7 ("net/packet: fix a race in packet_bind() and packet_notifier()"). There too the packet_notifier NETDEV_UP event managed to run while a po->bind_lock critical section had to be temporarily released. And the fix was similarly to temporarily set po->num to zero to keep the socket unhooked until the lock is retaken. The po->bind_lock in packet_set_ring and packet_notifier precede the introduction of git history.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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，该漏洞源于packet_set_ring和packet_notifier竞争条件可能导致未定义行为。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 18f13f2a83eb81be349a9757ba2141ff1da9ad73 -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2025-38617

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III. Intelligence Information for CVE-2025-38617

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Patches & Fixes for CVE-2025-38617 (1)

Security Blog Posts for CVE-2025-38617 (1)

Same Patch Batch · Linux · 2025-08-22 · 60 CVEs total

CVE-2025-38660 9.8 CRITICAL [ceph] parse_longname(): strrchr() expects NUL-terminated string
CVE-2025-38643 8.8 HIGH wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()
CVE-2025-38658 8.8 HIGH nvmet: pci-epf: Do not complete commands twice if nvmet_req_init() fails
CVE-2024-58239 8.2 HIGH tls: stop recv() if initial process_rx_list gave us non-DATA
CVE-2025-38616 7.8 HIGH tls: handle data disappearing from under the TLS ULP
CVE-2025-38618 7.8 HIGH vsock: Do not allow binding to VMADDR_PORT_ANY
CVE-2025-38640 7.8 HIGH bpf: Disable migration in nf_hook_run_bpf().
CVE-2025-38670 7.8 HIGH arm64/entry: Mask DAIF in cpu_switch_to(), call_on_irq_stack()
CVE-2025-38619 7.8 HIGH media: ti: j721e-csi2rx: fix list_del corruption
CVE-2025-38667 7.8 HIGH iio: fix potential out-of-bound write
CVE-2025-38675 7.8 HIGH xfrm: state: initialize state_ptrs earlier in xfrm_state_find
CVE-2025-38653 7.8 HIGH proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al
CVE-2025-38627 7.8 HIGH f2fs: compress: fix UAF of f2fs_inode_info in f2fs_free_dic
CVE-2025-38656 7.8 HIGH wifi: iwlwifi: Fix error code in iwl_op_mode_dvm_start()
CVE-2025-38659 7.8 HIGH gfs2: No more self recovery
CVE-2025-38652 7.3 HIGH f2fs: fix to avoid out-of-boundary access in devs.path
CVE-2025-38657 7.3 HIGH wifi: rtw89: mcc: prevent shift wrapping in rtw89_core_mlsr_switch()
CVE-2025-38639 7.1 HIGH netfilter: xt_nfacct: don't assume acct name is null-terminated
CVE-2025-38661 7.1 HIGH platform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array
CVE-2025-38662 7.1 HIGH ASoC: mediatek: mt8365-dai-i2s: pass correct size to mt8365_dai_set_priv

Showing top 20 of 60 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38617

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