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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-21 17:12:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-21 17:12:18 -0800 |
| commit | 177626c6d5ab1f73d41c94bf9fb0071149779bff (patch) | |
| tree | c620e6efef42ae5dadd161a5768e6b61e7b31d8a /kernel | |
| parent | 92ae63c07b8fba40f960c7286403bbdc90e46655 (diff) | |
| parent | a381b70a1cf88e4a2d54f24d59abdcad0ff2dfe6 (diff) | |
Merge tag 'seccomp-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
"Two small seccomp updates.
This contains a fix for a build failure that went unnoticed for many
years, and a memory barrier correction:
- Fix a non-FILTER build failure for some architectures (Paul
Cercueil)
- Improve performance with correct memory barrier (wanghongzhe)"
* tag 'seccomp-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
seccomp: Improve performace by optimizing rmb()
seccomp: Add missing return in non-void function
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/seccomp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c index 952dc1c90229..1d60fc2c9987 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -1164,7 +1164,7 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd, * Make sure that any changes to mode from another thread have * been seen after SYSCALL_WORK_SECCOMP was seen. */ - rmb(); + smp_rmb(); if (!sd) { populate_seccomp_data(&sd_local); @@ -1284,6 +1284,8 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd, const bool recheck_after_trace) { BUG(); + + return -1; } #endif |