In the Linux kernel, the following vulnerability has been resolved:
tee: optee: Fix kernel panic caused by incorrect error handling
The error path while failing to register devices on the TEE bus has a
bug leading to kernel panic as follows:
[ 15.398930] Unable to handle kernel paging request at virtual address ffff07ed00626d7c
[ 15.406913] Mem abort info:
[ 15.409722] ESR 0x0000000096000005
[ 15.413490] EC 0x25: DABT (current EL), IL 32 bits
[ 15.418814] SET 0, FnV 0
[ 15.421878] EA 0, S1PTW 0
[ 15.425031] FSC 0x05: level 1 translation fault
[ 15.429922] Data abort info:
[ 15.432813] ISV 0, ISS 0x00000005, ISS2 0x00000000
[ 15.438310] CM 0, WnR 0, TnD 0, TagAccess 0
[ 15.443372] GCS 0, Overlay 0, DirtyBit 0, Xs 0
[ 15.448697] swapper pgtable: 4k pages, 48-bit VAs, pgdp00000000d9e3e000
[ 15.455413] [ffff07ed00626d7c] pgd1800000bffdf9003, p4d1800000bffdf9003, pud0000000000000000
[ 15.464146] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Commit 7269cba53d90 ("tee: optee: Fix supplicant based device enumeration")
lead to the introduction of this bug. So fix it appropriately.
Publication date: Fri, 17 May 2024 18:15:00 +0000