mirror of https://gitee.com/openkylin/linux.git
19de99f70b
The ctx structure passed into bpf programs is different depending on bpf
program type. The verifier incorrectly marked ctx->data and ctx->data_end
access based on ctx offset only. That caused loads in tracing programs
int bpf_prog(struct pt_regs *ctx) { .. ctx->ax .. }
to be incorrectly marked as PTR_TO_PACKET which later caused verifier
to reject the program that was actually valid in tracing context.
Fix this by doing program type specific matching of ctx offsets.
Fixes:
|
||
|---|---|---|
| .. | ||
| Makefile | ||
| arraymap.c | ||
| core.c | ||
| hashtab.c | ||
| helpers.c | ||
| inode.c | ||
| percpu_freelist.c | ||
| percpu_freelist.h | ||
| stackmap.c | ||
| syscall.c | ||
| verifier.c | ||