Description
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE On Google gs101, the number of UTP transfer request slots (nutrs) is 32, and in this case the driver ends up programming the UTRL_NEXUS_TYPE incorrectly as 0. This is because the left hand side of the shift is 1, which is of type int, i.e. 31 bits wide. Shifting by more than that width results in undefined behaviour. Fix this by switching to the BIT() macro, which applies correct type casting as required. This ensures the correct value is written to UTRL_NEXUS_TYPE (0xffffffff on gs101), and it also fixes a UBSAN shift warning: UBSAN: shift-out-of-bounds in drivers/ufs/host/ufs-exynos.c:1113:21 shift exponent 32 is too large for 32-bit type 'int' For consistency, apply the same change to the nutmrs / UTMRL_NEXUS_TYPE write.
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
55f4b1f73631a0817717fe6e98517de51b4c3527 to < 01510a9e8222f11cce064410f3c2fcf0756c0a08affected55f4b1f73631a0817717fe6e98517de51b4c3527 to < 098b2c8ee208c77126839047b9e6e1925bb35baaaffected55f4b1f73631a0817717fe6e98517de51b4c3527 to < c1f025da8f370a015e412b55cbcc583f91de8316affected55f4b1f73631a0817717fe6e98517de51b4c3527 to < 6d53b2a134da77eb7fe65c5c7c7a3c193539a78aaffected55f4b1f73631a0817717fe6e98517de51b4c3527 to < dc8fb963742f1a38d284946638f9358bdaa0ddeeaffected55f4b1f73631a0817717fe6e98517de51b4c3527 to < 5b9f1ef293428ea9c0871d96fcec2a87c4445832affected55f4b1f73631a0817717fe6e98517de51b4c3527 to < 01aad16c2257ab8ff33b152b972c9f2e1af47912affected
Linux Linux
Default version status: affected
5.9affected0 to < 5.9unaffected5.10.241 to ≤ 5.10.*unaffected5.15.190 to ≤ 5.15.*unaffected6.1.149 to ≤ 6.1.*unaffected6.6.103 to ≤ 6.6.*unaffected6.12.44 to ≤ 6.12.*unaffected6.16.4 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/01510a9e8222f11cce064410f3c2fcf0756c0a08 ↗
- https://git.kernel.org/stable/c/098b2c8ee208c77126839047b9e6e1925bb35baa ↗
- https://git.kernel.org/stable/c/c1f025da8f370a015e412b55cbcc583f91de8316 ↗
- https://git.kernel.org/stable/c/6d53b2a134da77eb7fe65c5c7c7a3c193539a78a ↗
- https://git.kernel.org/stable/c/dc8fb963742f1a38d284946638f9358bdaa0ddee ↗
- https://git.kernel.org/stable/c/5b9f1ef293428ea9c0871d96fcec2a87c4445832 ↗
- https://git.kernel.org/stable/c/01aad16c2257ab8ff33b152b972c9f2e1af47912 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html ↗