CVE-2023-52493

Summary

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]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 20a6dea2d1c68d4e03c6bb50bc12e72e226b5c0eaffected
LinuxLinux1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 6e4c84316e2b70709f0d00c33ba3358d9fc8eeceaffected
LinuxLinux1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 3c5ec66b4b3f6816f3a6161538672e389e537690affected
LinuxLinux1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < eaefb9464031215d63c0a8a7e2bfaa00736aa17eaffected
LinuxLinux1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < b8eff20d87092e14cac976d057cb0aea2f1d0830affected
LinuxLinux1d3173a3bae7039b765a0956e3e4bf846dbaacb8 < 01bd694ac2f682fb8017e16148b928482bc8fa4baffected
LinuxLinux5.7affected
LinuxLinux0 < 5.7unaffected
LinuxLinux5.10.210 <= 5.10.*unaffected
LinuxLinux5.15.149 <= 5.15.*unaffected
LinuxLinux6.1.76 <= 6.1.*unaffected
LinuxLinux6.6.15 <= 6.6.*unaffected
LinuxLinux6.7.3 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References