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THREATINT
PUBLISHED

CVE-2025-38094

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



Description

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.

Reserved 2025-04-16 | Published 2025-07-03 | Updated 2025-07-03 | Assigner Linux

Product status

Default status
unaffected

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
affected

Default status
affected

3.8
affected

Any version before 3.8
unaffected

5.10.238
unaffected

5.15.184
unaffected

6.1.140
unaffected

6.6.92
unaffected

6.12.30
unaffected

6.14.8
unaffected

6.15
unaffected

References

git.kernel.org/...c/0772a608d799ac0d127c0a36047a2725777aba9d

git.kernel.org/...c/64675a9c00443b2e8af42af08c38fc1b78b68ba2

git.kernel.org/...c/aace6b63892ce8307e502a60fe2f5a4bc6e1cfe7

git.kernel.org/...c/1d60c0781c1bbeaa1196b0d8aad5c435f06cb7c4

git.kernel.org/...c/3e64d35475aa21d13dab71da51de51923c1a3a48

git.kernel.org/...c/84f98955a9de0e0f591df85aa1a44f3ebcf1cb37

git.kernel.org/...c/c92d6089d8ad7d4d815ebcedee3f3907b539ff1f

cve.org (CVE-2025-38094)

nvd.nist.gov (CVE-2025-38094)

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