CVE-2023-52494High· 7.8▾ TwilightIn 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 …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
0.3% → 0.3%
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.
linux_kernel >= 5.13, < 5.15.149linux_kernel >= 5.16, < 6.1.76linux_kernel >= 6.2, < 6.6.15linux_kernel >= 6.7, < 6.7.3Upgrade past the affected range:
linux_kernel 6.7.3Connected by shared product, vendor, weakness, or advisory.
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