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| author | Kees Cook <[email protected]> | 2024-02-21 05:16:38 +0000 |
|---|---|---|
| committer | Kees Cook <[email protected]> | 2024-02-29 21:38:02 +0000 |
| commit | 99db710f768e988e70f1164537bf533a017be24d (patch) | |
| tree | 385cf2015d588e9cde29d887463f989c553cf2bb /lib/string_helpers.c | |
| parent | coccinelle: semantic patch to check for potential struct_size calls (diff) | |
| download | kernel-99db710f768e988e70f1164537bf533a017be24d.tar.gz kernel-99db710f768e988e70f1164537bf533a017be24d.zip | |
refcount: Annotated intentional signed integer wrap-around
Mark the various refcount_t functions with __signed_wrap, as we depend
on the wrapping behavior to detect the overflow and perform saturation.
Silences warnings seen with the LKDTM REFCOUNT_* tests:
UBSAN: signed-integer-overflow in ../include/linux/refcount.h:189:11
2147483647 + 1 cannot be represented in type 'int'
Reviewed-by: Miguel Ojeda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kees Cook <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions