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CVE Record

CVE-2025-68336: locking/spinlock/debug: Fix data-race in do_raw_write_lock

In the Linux kernel, the following vulnerability has been resolved: locking/spinlock/debug: Fix data-race in do_raw_write_lock KCSAN reports: BUG: KCSAN: data-race in do_raw_write_lock / do_raw_write_lock write (marked) to 0xffff800009cf504c of 4 bytes by task 1102 on cpu 1: do_raw_write_lock+0x120/0x204 _raw_write_lock_irq do_exit call_usermodehelper_exec_async ret_from_fork read to 0xffff800009cf504c of 4 bytes by task 1103 on cpu 0: do_raw_write_lock+0x88/0x204 _raw_write_lock_irq do_exit call_usermodehelper_exec_async ret_from_fork value changed: 0xffffffff -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1103 Comm: kworker/u4:1 6.1.111 Commit 1a365e822372 ("locking/spinlock/debug: Fix various data races") has adressed most of these races, but seems to be not consistent/not complete. >From do_raw_write_lock() only debug_write_lock_after() part has been converted to WRITE_ONCE(), but not debug_write_lock_before() part. Do it now.

HighCVSS 7.5Not KEV-listedUpdated
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Potential ATT&CK relevance

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CVE-2025-68336 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1CVSS vectors
3Timeline events
0ADP providers
9Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2025-68336Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

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  1. CVE reservedCVE Program

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  2. CVE publishedCVE Program

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  3. CVE updatedCVE Program

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux1a365e822372ba24c9da0822bc583894f6f3d821, 1a365e822372ba24c9da0822bc583894f6f3d821, 1a365e822372ba24c9da0822bc583894f6f3d821, 1a365e822372ba24c9da0822bc583894f6f3d821, 1a365e822372ba24c9da0822bc583894f6f3d821, 1a365e822372ba24c9da0822bc583894f6f3d821, 1a365e822372ba24c9da0822bc583894f6f3d821, 1a365e822372ba24c9da0822bc583894f6f3d821, 3106fb78d3579c8e9c9b3040f7f7841981919624, c0911024ff927ba5c4786b507004cb615be1d776, 09226e5c38639437565af01e6009a9286a351d04, c7673f01604fa722b9d7c1e29e17cec1b8ae09c5, c120c3dbeb76305235c8e557f84d9e2d7d0f5933, 4.4.209, 4.9.209, 4.14.164, 4.19.95, 5.4.11unaffected
LinuxLinux5.5, 0, 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.62, 6.17.12, 6.18.1, 6.19affected
Weakness

CWE details

No CWE listed

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