Preston_PLB
/
kernel-aes67
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM fix for v6.9 

- clear stale KASan stack poison when a CPU resumes
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAmY8tf8ACgkQ9OeQG+St
 rGRBZg//eI5Nn6PnWQVAJrIDr0/PTiJ7xrE8QlSSn/a2u6fXXUWla3MwGKCj5k51
 R6zMdANFwTFHAa8HecPGCganGgjbdY6FgqCOOCka7Ia+Y5nQXhTEQ0cRgMXf40Hc
 LT/ylnPAlMhd9zNWn9pgdA8AXm8KfQhQsNIewel9rGRE2E2RU9795ldVMwp3/yqH
 3HWXsiQ4bR/EiHD7SewRMPnDaGl+zGdlFEd9eiWtsla+a26/GVMIdikgd/Bjs/Ef
 VjndtgnmHw42BuouWEMx9Fqx21EP3aqegkJhlr6fjZ++/0h7sjgc+kXwyWlxbp7e
 3WW+Nz+V1YgJ3+UIVcyZj2cxNh3AoSxXdstUq86wOaBp647qA4IBI8PD0j7yqIeT
 qYlHaQG7IKOsZhRwSBaV60h3ZISPL9q4rmtN/thBOHXb+xduVc2irfcPIlmg9VKI
 j/+E3DNpwME8j3TWD1lk6fTueQhamkn0HV6F9DHSY0PpFtVSpYn0X5M+7AwVMUfz
 BFBuU7IuP5wR8fr5jin4gX/L1i9kAaflO80B8dm3deQ6JAgD6mU/+tn+fjxqLgFX
 HkPePFUbimQIpDnOShhrqtBtI3+ndxVRiBZkrOhYK3ia6utPqq5Q3i+hIH6acMb9
 jr0s5gn2AZB+KcwGPFanj9aeOlIoz3iKvufZ2eiu/RbtkgxeInI=
 =qmWM
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM fix from Russell King:

 - clear stale KASan stack poison when a CPU resumes

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: 9381/1: kasan: clear stale stack poison
This commit is contained in:
Linus Torvalds 2024-05-09 08:44:13 -07:00
parent 1bbc991585 c4238686f9
commit 62788b0f22
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/kernel/sleep.S
View File

@ -127,6 +127,10 @@ cpu_resume_after_mmu:
instr_sync instr_sync
#endif #endif
bl cpu_init @ restore the und/abt/irq banked regs bl cpu_init @ restore the und/abt/irq banked regs
#if defined(CONFIG_KASAN) && defined(CONFIG_KASAN_STACK)
mov r0, sp
bl kasan_unpoison_task_stack_below
#endif
mov r0, #0 @ return zero on success mov r0, #0 @ return zero on success
ldmfd sp!, {r4 - r11, pc} ldmfd sp!, {r4 - r11, pc}
ENDPROC(cpu_resume_after_mmu) ENDPROC(cpu_resume_after_mmu)