CVE-2026-23302

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.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/279f2b67d1c44ee139bd3fdb221850daa9358449
https://git.kernel.org/stable/c/27fccdbcbbfc4651b6f66756e6fa3f52e051ec23	Patch
https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a6ba68493f8780776ff84300	Patch
https://git.kernel.org/stable/c/7ad01905831c815520f1b0486336a03bb7420465	Patch
https://git.kernel.org/stable/c/c494448bb522bbbb63096540eb2319101a0480ab	Patch
https://git.kernel.org/stable/c/f17c1c4acbe2bd702abce73a847a04a196fab2c5	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::

History

No history.

Information

Published : 2026-03-25 11:16

Updated : 2026-07-04 12:16

NVD link : CVE-2026-23302

Mitre link : CVE-2026-23302

CVE.ORG link : CVE-2026-23302

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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"7ad01905831c815520f1b0486336a03bb7420465", "versionType": "git"}, {"status": "affected", "version": "604326b41a6fb9b4a78b6179335decee0365cd8c", "lessThan": "c494448bb522bbbb63096540eb2319101a0480ab", "versionType": "git"}, {"status": "affected", "version": "604326b41a6fb9b4a78b6179335decee0365cd8c", "lessThan": "f17c1c4acbe2bd702abce73a847a04a196fab2c5", "versionType": "git"}, {"status": "affected", "version": "604326b41a6fb9b4a78b6179335decee0365cd8c", "lessThan": "27fccdbcbbfc4651b6f66756e6fa3f52e051ec23", "versionType": "git"}, {"status": "affected", "version": "604326b41a6fb9b4a78b6179335decee0365cd8c", "lessThan": "2ef2b20cf4e04ac8a6ba68493f8780776ff84300", "versionType": "git"}], "programFiles": ["net/core/skmsg.c", "net/ipv4/tcp.c", "net/ipv4/tcp_bpf.c", "net/ipv4/tcp_input.c", "net/ipv4/tcp_minisocks.c", "net/ipv4/udp.c", "net/ipv4/udp_bpf.c", "net/unix/af_unix.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.20"}, {"status": "unaffected", "version": "0", "lessThan": "4.20", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.177", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.136", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.82", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.17", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.7", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/core/skmsg.c", "net/ipv4/tcp.c", "net/ipv4/tcp_bpf.c", "net/ipv4/tcp_input.c", "net/ipv4/tcp_minisocks.c", "net/ipv4/udp.c", "net/ipv4/udp_bpf.c", "net/unix/af_unix.c"], "defaultStatus": "affected"}]}], "published": "2026-03-25T11:16:25.923", "references": [{"url": "https://git.kernel.org/stable/c/279f2b67d1c44ee139bd3fdb221850daa9358449", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/27fccdbcbbfc4651b6f66756e6fa3f52e051ec23", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a6ba68493f8780776ff84300", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7ad01905831c815520f1b0486336a03bb7420465", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c494448bb522bbbb63096540eb2319101a0480ab", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f17c1c4acbe2bd702abce73a847a04a196fab2c5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: annotate data-races around sk->sk_{data_ready,write_space}\n\nskmsg (and probably other layers) are changing these pointers\nwhile other cpus might read them concurrently.\n\nAdd corresponding READ_ONCE()/WRITE_ONCE() annotations\nfor UDP, TCP and AF_UNIX."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: anotar condiciones de carrera de datos alrededor de sk->sk_{data_ready,write_space}\n\nskmsg (y probablemente otras capas) est\u00e1n cambiando estos punteros mientras otras CPUs podr\u00edan leerlos concurrentemente.\n\nA\u00f1adir las correspondientes anotaciones READ_ONCE()/WRITE_ONCE() para UDP, TCP y AF_UNIX."}], "lastModified": "2026-07-04T12:16:54.980", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6508946E-134B-4941-9550-4B3C2C1D16DD", "versionEndExcluding": "6.6.136", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02904CAE-71D2-45B3-9EC3-F6A9D18B6307", "versionEndExcluding": "6.12.82", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A5E006E4-59C7-43C1-9231-62A72219F2BA", "versionEndExcluding": "6.18.17", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3", "versionEndExcluding": "6.19.7", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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