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
linux: linux kernel
References10
- git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 Mailing ListPatch
- git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 Mailing ListPatch
- git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 Mailing ListPatch
- git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b Mailing ListPatch
- git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f Mailing ListPatch
- git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551 Mailing ListPatch
- git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08 Mailing ListPatch
- git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010 Mailing ListPatch
- git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b Mailing ListPatch
- git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f Mailing ListPatch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 21 · as of 5 November 2026
- CWE
- CWE-787
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