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CVE-2025-38094

net: cadence: macb: Fix a possible deadlock in macb_halt_tx. PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: net: cadence: macb: Fix a possible deadlock in macb_halt_tx. There is a situation where after THALT is set high, TGO stays high as well. Because jiffies are never updated, as we are in a context with interrupts disabled, we never exit that loop and have a deadlock. That deadlock was noticed on a sama5d4 device that stayed locked for days. Use retries instead of jiffies so that the timeout really works and we do not have a deadlock anymore.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected e86cd53afc5907f7c221b709916e2dd354e14691 before 0772a608d799ac0d127c0a36047a2725777aba9d; affected e86cd53afc5907f7c221b709916e2dd354e14691 before 64675a9c00443b2e8af42af08c38fc1b78b68ba2; affected e86cd53afc5907f7c221b709916e2dd354e14691 before aace6b63892ce8307e502a60fe2f5a4bc6e1cfe7; affected e86cd53afc5907f7c221b709916e2dd354e14691 before 1d60c0781c1bbeaa1196b0d8aad5c435f06cb7c4; affected e86cd53afc5907f7c221b709916e2dd354e14691 before 3e64d35475aa21d13dab71da51de51923c1a3a48; affected e86cd53afc5907f7c221b709916e2dd354e14691 before 84f98955a9de0e0f591df85aa1a44f3ebcf1cb37; affected e86cd53afc5907f7c221b709916e2dd354e14691 before c92d6089d8ad7d4d815ebcedee3f3907b539ff1f
Linux / Linuxaffected 3.8; unaffected 0 before 3.8; unaffected 5.10.238 through 5.10.*; unaffected 5.15.184 through 5.15.*; unaffected 6.1.140 through 6.1.*; unaffected 6.6.92 through 6.6.*; unaffected 6.12.30 through 6.12.*; unaffected 6.14.8 through 6.14.*; unaffected 6.15 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.