linux.git/tools/testing/selftests/bpf/progs/fentry_sleepable.c, branch master Linux kernel source tree selftests/bpf: Verify rejection of sleepable tracing prog 2026-08-05T18:40:10+00:00 Leon Hwang leon.hwang@linux.dev 2026-08-05T15:08:10+00:00 045809795751897ebbb82ab775edd8a3d040d66f Add a test to verify that the sleepable tracing prog cannot attach to a '__x64_sys' prefix prog target. When CONFIG_FUNCTION_ERROR_INJECTION is disabled, without the fix, the test would trigger the BUG: [ 3.460756] BUG: sleeping function called from invalid context at kernel/bpf/trampoline.c:1324 Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260805150810.34907-3-leon.hwang@linux.dev 
Add a test to verify that the sleepable tracing prog cannot attach to a
'__x64_sys' prefix prog target.

When CONFIG_FUNCTION_ERROR_INJECTION is disabled, without the fix, the
test would trigger the BUG:

[    3.460756] BUG: sleeping function called from invalid context at kernel/bpf/trampoline.c:1324

Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20260805150810.34907-3-leon.hwang@linux.dev