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author | Jann Horn <jannh@google.com> | 2023-01-16 22:14:25 +0300 |
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committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-27 16:17:22 +0300 |
commit | 47d586913f2abec4d240bae33417f537fda987ec (patch) | |
tree | 7471e6d7d4bd383ae9770bd9ca14a0933c04c34b /sound | |
parent | 1b929c02afd37871d5afb9d498426f83432e71c2 (diff) | |
download | linux-47d586913f2abec4d240bae33417f537fda987ec.tar.xz |
fs: Use CHECK_DATA_CORRUPTION() when kernel bugs are detected
Currently, filp_close() and generic_shutdown_super() use printk() to log
messages when bugs are detected. This is problematic because infrastructure
like syzkaller has no idea that this message indicates a bug.
In addition, some people explicitly want their kernels to BUG() when kernel
data corruption has been detected (CONFIG_BUG_ON_DATA_CORRUPTION).
And finally, when generic_shutdown_super() detects remaining inodes on a
system without CONFIG_BUG_ON_DATA_CORRUPTION, it would be nice if later
accesses to a busy inode would at least crash somewhat cleanly rather than
walking through freed memory.
To address all three, use CHECK_DATA_CORRUPTION() when kernel bugs are
detected.
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions