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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2025-09-06 10:17:35 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2025-09-06 10:17:35 +0200 |
| commit | d035b4baebfc5112b128b66cafd45d2522a9c8f1 (patch) | |
| tree | fc96e96e81597068c9a869c679d18a1a44394164 /arch/x86/kernel/cpu/bugs.c | |
| parent | Linux 6.17-rc3 (diff) | |
| parent | i2c: rtl9300: remove broken SMBus Quick operation support (diff) | |
| download | linux-d035b4baebfc5112b128b66cafd45d2522a9c8f1.tar.gz linux-d035b4baebfc5112b128b66cafd45d2522a9c8f1.zip | |
Merge tag 'i2c-host-fixes-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
i2c-host-fixes for v6.17-rc5
- i801: fix device IDs
- in rtl9300:
- fix channel number check in probe
- check data length boundaries in xfer
- drop unsupported SMBus quick operation
Diffstat (limited to 'arch/x86/kernel/cpu/bugs.c')
| -rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 49ef1b832c1a..af838b8d845c 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -416,6 +416,10 @@ static bool __init should_mitigate_vuln(unsigned int bug) cpu_attack_vector_mitigated(CPU_MITIGATE_USER_USER) || cpu_attack_vector_mitigated(CPU_MITIGATE_GUEST_GUEST) || (smt_mitigations != SMT_MITIGATIONS_OFF); + + case X86_BUG_SPEC_STORE_BYPASS: + return cpu_attack_vector_mitigated(CPU_MITIGATE_USER_USER); + default: WARN(1, "Unknown bug %x\n", bug); return false; @@ -2710,6 +2714,11 @@ static void __init ssb_select_mitigation(void) ssb_mode = SPEC_STORE_BYPASS_DISABLE; break; case SPEC_STORE_BYPASS_CMD_AUTO: + if (should_mitigate_vuln(X86_BUG_SPEC_STORE_BYPASS)) + ssb_mode = SPEC_STORE_BYPASS_PRCTL; + else + ssb_mode = SPEC_STORE_BYPASS_NONE; + break; case SPEC_STORE_BYPASS_CMD_PRCTL: ssb_mode = SPEC_STORE_BYPASS_PRCTL; break; |