CVE-2026-80737

serial: amba-pl011: synchronize DMA teardown

State: Published
Severity: 7.8 High
Published: Sep 3, 2026
Updated: Oct 16, 2026
Reserved: Aug 26, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

serial: amba-pl011: synchronize DMA teardown

dmaengine_terminate_all() does not wait for a running callback, so the TX callback can still touch the TX buffer after it is freed. The RX poll timer reads the RX buffers without the port lock.

Switch to dmaengine_terminate_sync() and delete the RX timer before freeing the buffers.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	ead76f329f777c7301e0a5456a0a1c7a081570bd to before a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76eAffected ead76f329f777c7301e0a5456a0a1c7a081570bd to before 44bd0ecc3444882d08ecfbc2b2418d2f463d3186Affected ead76f329f777c7301e0a5456a0a1c7a081570bd to before f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03Affected ead76f329f777c7301e0a5456a0a1c7a081570bd to before c8c8e895f65fbf71ea6224e27cf8dab91b776e0dAffected ead76f329f777c7301e0a5456a0a1c7a081570bd to before 9f6989e477f03a4721d34bb4b09b17accd40283eAffected ead76f329f777c7301e0a5456a0a1c7a081570bd to before 5974cb66681eac367107b05924744d7e3b49d41cAffected ead76f329f777c7301e0a5456a0a1c7a081570bd to before fdfb46c387241b4eddd36d746793764413285913Affected ead76f329f777c7301e0a5456a0a1c7a081570bd to before 440915499231e9db1c361aa45bb702e8fd3b4a32Affected
LinuxLinux	2.6.39Affected before 2.6.39Not affected 5.10.267 through 5.10.Not affected 5.15.218 through 5.15.Not affected 6.1.185 through 6.1.Not affected 6.6.154 through 6.6.Not affected 6.12.106 through 6.12.Not affected 6.18.45 through 6.18.Not affected 7.1.9 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

ead76f329f777c7301e0a5456a0a1c7a081570bd to before a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76eAffected
ead76f329f777c7301e0a5456a0a1c7a081570bd to before 44bd0ecc3444882d08ecfbc2b2418d2f463d3186Affected
ead76f329f777c7301e0a5456a0a1c7a081570bd to before f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03Affected
ead76f329f777c7301e0a5456a0a1c7a081570bd to before c8c8e895f65fbf71ea6224e27cf8dab91b776e0dAffected
ead76f329f777c7301e0a5456a0a1c7a081570bd to before 9f6989e477f03a4721d34bb4b09b17accd40283eAffected
ead76f329f777c7301e0a5456a0a1c7a081570bd to before 5974cb66681eac367107b05924744d7e3b49d41cAffected
ead76f329f777c7301e0a5456a0a1c7a081570bd to before fdfb46c387241b4eddd36d746793764413285913Affected
ead76f329f777c7301e0a5456a0a1c7a081570bd to before 440915499231e9db1c361aa45bb702e8fd3b4a32Affected

LinuxLinux

2.6.39Affected
before 2.6.39Not affected
5.10.267 through 5.10.*Not affected
5.15.218 through 5.15.*Not affected
6.1.185 through 6.1.*Not affected
6.6.154 through 6.6.*Not affected
6.12.106 through 6.12.*Not affected
6.18.45 through 6.18.*Not affected
7.1.9 through 7.1.*Not affected
7.2 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.