Description
In the Linux kernel, the following vulnerability has been resolved: pmdomain: bcm: bcm2835-power: Increase ASB control timeout The bcm2835_asb_control() function uses a tight polling loop to wait for the ASB bridge to acknowledge a request. During intensive workloads, this handshake intermittently fails for V3D's master ASB on BCM2711, resulting in "Failed to disable ASB master for v3d" errors during runtime PM suspend. As a consequence, the failed power-off leaves V3D in a broken state, leading to bus faults or system hangs on later accesses. As the timeout is insufficient in some scenarios, increase the polling timeout from 1us to 5us, which is still negligible in the context of a power domain transition. Also, replace the open-coded ktime_get_ns()/ cpu_relax() polling loop with readl_poll_timeout_atomic().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
670c672608a1ffcbc7ac0f872734843593bb8b15 to < 0e84e74849d2d7e9b23a09c2d5e0d9357db1ca59affected670c672608a1ffcbc7ac0f872734843593bb8b15 to < c5e734f6a0740dce92e7c919e632cb43fa5d4e53affected670c672608a1ffcbc7ac0f872734843593bb8b15 to < 622ab02e955c35c125ff2b65d8327b2c52db8758affected670c672608a1ffcbc7ac0f872734843593bb8b15 to < 9443202d91388026dbf7312972a74fbfd27ee82faffected670c672608a1ffcbc7ac0f872734843593bb8b15 to < ea4fa54b83bb2e4a21e9026824bfe271b1a6ee1eaffected670c672608a1ffcbc7ac0f872734843593bb8b15 to < 18605b1b936b66b1f34dcf8e9ad4f1fbcf7a7c13affected670c672608a1ffcbc7ac0f872734843593bb8b15 to < 572f17180f26619809b8e0593d926762aa8660ffaffected670c672608a1ffcbc7ac0f872734843593bb8b15 to < b826d2c0b0ecb844c84431ba6b502e744f5d919aaffected
Linux Linux
Default version status: affected
5.1affected0 to < 5.1unaffected5.10.253 to ≤ 5.10.*unaffected5.15.203 to ≤ 5.15.*unaffected6.1.167 to ≤ 6.1.*unaffected6.6.130 to ≤ 6.6.*unaffected6.12.78 to ≤ 6.12.*unaffected6.18.20 to ≤ 6.18.*unaffected6.19.10 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0e84e74849d2d7e9b23a09c2d5e0d9357db1ca59 ↗
- https://git.kernel.org/stable/c/c5e734f6a0740dce92e7c919e632cb43fa5d4e53 ↗
- https://git.kernel.org/stable/c/622ab02e955c35c125ff2b65d8327b2c52db8758 ↗
- https://git.kernel.org/stable/c/9443202d91388026dbf7312972a74fbfd27ee82f ↗
- https://git.kernel.org/stable/c/ea4fa54b83bb2e4a21e9026824bfe271b1a6ee1e ↗
- https://git.kernel.org/stable/c/18605b1b936b66b1f34dcf8e9ad4f1fbcf7a7c13 ↗
- https://git.kernel.org/stable/c/572f17180f26619809b8e0593d926762aa8660ff ↗
- https://git.kernel.org/stable/c/b826d2c0b0ecb844c84431ba6b502e744f5d919a ↗