CVE-2023-52493
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Drop chan lock before queuing buffers Ensure read and write locks for the channel are not taken in succession by dropping the read lock from parse_xfer_event() such that…
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Drop chan lock before queuing buffers Ensure read and write locks for the channel are not taken in succession by dropping the read lock from parse_xfer_event() such that a callback given to client can potentially queue buffers and acquire the write lock in that process. Any queueing of buffers should be done without channel read lock acquired as it can result in multiple locks and a soft lockup. [mani: added fixes tag and cc'ed stable]
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/01bd694ac2f682fb8017e16148b928482bc8fa4bPatch
- https://git.kernel.org/stable/c/20a6dea2d1c68d4e03c6bb50bc12e72e226b5c0ePatch
- https://git.kernel.org/stable/c/3c5ec66b4b3f6816f3a6161538672e389e537690Patch
- https://git.kernel.org/stable/c/6e4c84316e2b70709f0d00c33ba3358d9fc8eecePatch
- https://git.kernel.org/stable/c/b8eff20d87092e14cac976d057cb0aea2f1d0830Patch
- https://git.kernel.org/stable/c/eaefb9464031215d63c0a8a7e2bfaa00736aa17ePatch
- https://git.kernel.org/stable/c/01bd694ac2f682fb8017e16148b928482bc8fa4bPatch
- https://git.kernel.org/stable/c/20a6dea2d1c68d4e03c6bb50bc12e72e226b5c0ePatch
- https://git.kernel.org/stable/c/3c5ec66b4b3f6816f3a6161538672e389e537690Patch
- https://git.kernel.org/stable/c/6e4c84316e2b70709f0d00c33ba3358d9fc8eecePatch
- https://git.kernel.org/stable/c/b8eff20d87092e14cac976d057cb0aea2f1d0830Patch
- https://git.kernel.org/stable/c/eaefb9464031215d63c0a8a7e2bfaa00736aa17ePatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.