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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /scripts/ksymoops | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'scripts/ksymoops')
| -rw-r--r-- | scripts/ksymoops/README | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/scripts/ksymoops/README b/scripts/ksymoops/README new file mode 100644 index 000000000..413043980 --- /dev/null +++ b/scripts/ksymoops/README @@ -0,0 +1,7 @@ +ksymoops has been removed from the kernel. It was always meant to be a +free standing utility, not linked to any particular kernel version. +The latest version can be found in +https://www.kernel.org/pub/linux/utils/kernel/ksymoops together with patches to +other utilities in order to give more accurate Oops debugging. + +Keith Owens <kaos@ocs.com.au> Sat Jun 19 10:30:34 EST 1999 |