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CVE-2026-23302— net: annotate data-races around sk->sk_{data_ready,write_space}

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sk->sk_data_ready和sk->sk_write_space指针存在数据竞争。

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.09% · P0

Possible ATT&CK Techniques 1 AI

T1562

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 604326b41a6fb9b4a78b6179335decee0365cd8c< 279f2b67d1c44ee139bd3fdb221850daa9358449 affected
604326b41a6fb9b4a78b6179335decee0365cd8c< 7ad01905831c815520f1b0486336a03bb7420465 affected
604326b41a6fb9b4a78b6179335decee0365cd8c< c494448bb522bbbb63096540eb2319101a0480ab affected
604326b41a6fb9b4a78b6179335decee0365cd8c< f17c1c4acbe2bd702abce73a847a04a196fab2c5 affected
604326b41a6fb9b4a78b6179335decee0365cd8c< 27fccdbcbbfc4651b6f66756e6fa3f52e051ec23 affected
604326b41a6fb9b4a78b6179335decee0365cd8c< 2ef2b20cf4e04ac8a6ba68493f8780776ff84300 affected
4.20 affected
< 4.20 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-23302

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
net: annotate data-races around sk->sk_{data_ready,write_space}
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: annotate data-races around sk->sk_{data_ready,write_space} skmsg (and probably other layers) are changing these pointers while other cpus might read them concurrently. Add corresponding READ_ONCE()/WRITE_ONCE() annotations for UDP, TCP and AF_UNIX.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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sk->sk_data_ready和sk->sk_write_space指针存在数据竞争。
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 604326b41a6fb9b4a78b6179335decee0365cd8c ~ 279f2b67d1c44ee139bd3fdb221850daa9358449 -
Linux Linux 4.20 -

II. Public POCs for CVE-2026-23302

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III. Intelligence Information for CVE-2026-23302

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Patches & Fixes for CVE-2026-23302 (4)

Other References for CVE-2026-23302 (1)

Same Patch Batch · Linux · 2026-03-25 · 116 CVEs total

CVE-2026-23395 8.8 HIGH Bluetooth: L2CAP: Fix accepting multiple L2CAP_ECRED_CONN_REQ
CVE-2026-31788 8.2 HIGH xen/privcmd: restrict usage in unprivileged domU
CVE-2026-23280 7.8 HIGH accel/amdxdna: Prevent ubuf size overflow
CVE-2026-23317 7.8 HIGH drm/vmwgfx: Return the correct value in vmw_translate_ptr functions
CVE-2026-23393 7.8 HIGH bridge: cfm: Fix race condition in peer_mep deletion
CVE-2026-23392 7.8 HIGH netfilter: nf_tables: release flowtable after rcu grace period on error
CVE-2026-23391 7.8 HIGH netfilter: xt_CT: drop pending enqueued packets on template removal
CVE-2026-23340 7.8 HIGH net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs
CVE-2026-23372 7.8 HIGH nfc: rawsock: cancel tx_work before socket teardown
CVE-2026-23306 7.8 HIGH scsi: pm8001: Fix use-after-free in pm8001_queue_command()
CVE-2026-23288 7.8 HIGH accel/amdxdna: Fix out-of-bounds memset in command slot handling
CVE-2026-23378 7.8 HIGH net/sched: act_ife: Fix metalist update behavior
CVE-2026-23336 7.8 HIGH wifi: cfg80211: cancel rfkill_block work in wiphy_unregister()
CVE-2026-23351 7.8 HIGH netfilter: nft_set_pipapo: split gc into unlink and reclaim phase
CVE-2026-23383 7.8 HIGH bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing
CVE-2026-23350 7.8 HIGH drm/xe/queue: Call fini on exec queue creation fail
CVE-2026-23364 7.4 HIGH ksmbd: Compare MACs in constant time
CVE-2026-23294 7.0 HIGH bpf: Fix race in devmap on PREEMPT_RT
CVE-2026-23358 drm/amdgpu: Fix error handling in slot reset
CVE-2026-23357 can: mcp251x: fix deadlock in error path of mcp251x_open

Showing top 20 of 116 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23302

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