| commit | adcea23cb0d18a94e20249a40945ca107c4dc85d | |
| author | Alexander Motin <mav@FreeBSD.org> | |
| Fri, 1 Dec 2023 19:50:10 +0000 (1 14:50 -0500) | ||
| committer | GitHub <noreply@github.com> | |
| Fri, 1 Dec 2023 19:50:10 +0000 (1 11:50 -0800) | ||
| tree | d4c73381e00e5f96490c0ce8740e51d0c96b4fff | treesnapshot (tar.gz zip) |
| parent | 3e4bef52b084dacc0f1abdaec428c0bdfb73f96d | commitdiff |
ZIO: Add overflow checks for linear buffers
Since we use a limited set of kmem caches, quite often we have unused
memory after the end of the buffer. Put there up to a 512-byte canary
when built with debug to detect buffer overflows at the free time.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes #15553
Since we use a limited set of kmem caches, quite often we have unused
memory after the end of the buffer. Put there up to a 512-byte canary
when built with debug to detect buffer overflows at the free time.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes #15553
| lib/libspl/include/assert.h | diffblobblamehistory | |
| module/zfs/zio.c | diffblobblamehistory |