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e30a0361b8
If PREEMPT_RT is enabled, report_lock is a sleeping spinlock and must not
be locked when IRQs are disabled. However, KASAN reports may be triggered
in such contexts. For example:
char *s = kzalloc(1, GFP_KERNEL);
kfree(s);
local_irq_disable();
char c = *s; /* KASAN report here leads to spin_lock() */
local_irq_enable();
Make report_spinlock a raw spinlock to prevent rescheduling when
PREEMPT_RT is enabled.
Link: https://lkml.kernel.org/r/20241119210234.1602529-1-jkangas@redhat.com
Fixes:
|
||
|---|---|---|
| .. | ||
| common.c | ||
| generic.c | ||
| hw_tags.c | ||
| init.c | ||
| kasan_test_c.c | ||
| kasan_test_rust.rs | ||
| kasan.h | ||
| Makefile | ||
| quarantine.c | ||
| report_generic.c | ||
| report_hw_tags.c | ||
| report_sw_tags.c | ||
| report_tags.c | ||
| report.c | ||
| shadow.c | ||
| sw_tags.c | ||
| tags.c | ||