CVE-2023-52494: bus: mhi: host: Add alignment check for event ring read pointer

Description

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Add alignment check for event ring read pointer Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption. So add a alignment check for event ring read pointer.

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

a1d2bd164c1c78f87968b7883964175ec41c32ae to < 76ed0c6f6418cec6efe6f65a0b91f84be80b72ebaffected
ec32332df7645e0ba463a08d483fe97665167071 to < 94991728c84f8df54fd9eec9b85855ef9057ea08affected
ec32332df7645e0ba463a08d483fe97665167071 to < 2df39ac8f813860f79782807c3f7acff40b3c551affected
ec32332df7645e0ba463a08d483fe97665167071 to < a9ebfc405fe1be145f414eafadcbf09506082010affected
ec32332df7645e0ba463a08d483fe97665167071 to < ecf8320111822a1ae5d5fc512953eab46d543d0baffected
ec32332df7645e0ba463a08d483fe97665167071 to < eff9704f5332a13b08fbdbe0f84059c9e7051d5faffected
fd5f40fc887485a8b9a6806a640a0d8e0ef1afb6affected
76879a980cd5ede4cb9a638999fb80d37bc09db5affected
5.10.36 to < 5.10.261affected
5.11.20 to < 5.12affected
5.12.3 to < 5.13affected

Linux Linux

Default version status: affected

5.13affected
0 to < 5.13unaffected
5.10.261 to ≤ 5.10.*unaffected
5.15.149 to ≤ 5.15.*unaffected
6.1.76 to ≤ 6.1.*unaffected
6.6.15 to ≤ 6.6.*unaffected
6.7.3 to ≤ 6.7.*unaffected
6.8 to ≤ *unaffected

CVE-2023-52494

bus: mhi: host: Add alignment check for event ring read pointer

Description

Affected products

Linux Linux

Linux Linux

References