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Fix a kernel panic in the AES crypto code caused by a BR tail call not

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matching the target BTI instruction (when branch target identification
 is enabled).
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Fix a kernel panic in the AES crypto code caused by a BR tail call not
  matching the target BTI instruction (when branch target identification
  is enabled)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  crypto: arm64: Use x16 with indirect branch to bti_c
This commit is contained in:
Linus Torvalds 2020-10-06 12:09:29 -07:00
parent 6ec37e6bb1 39e4716caa
commit c85fb28b6f
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/crypto/aes-neonbs-core.S
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@ -788,7 +788,7 @@ SYM_FUNC_START_LOCAL(__xts_crypt8)
0: mov bskey, x21
mov rounds, x22
br x7
br x16
SYM_FUNC_END(__xts_crypt8)
.macro __xts_crypt, do8, o0, o1, o2, o3, o4, o5, o6, o7
@ -806,7 +806,7 @@ SYM_FUNC_END(__xts_crypt8)
uzp1 v30.4s, v30.4s, v25.4s
ld1 {v25.16b}, [x24]
99: adr x7, \do8
99: adr x16, \do8
bl __xts_crypt8
ldp q16, q17, [sp, #.Lframe_local_offset]