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| author | Chuck Lever <chuck.lever@oracle.com> | 2024-09-17 12:15:23 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 14:03:02 +0100 |
| commit | ccd3394f9a7200d6b088553bf38e688620cd27af (patch) | |
| tree | b72c9248a0213d15f87f4c3c552cb9a3ab687d0b /kernel/workqueue.c | |
| parent | 76b9f8cbb1a33d45546677f031eeef2e71c3c6c2 (diff) | |
| download | linux-ccd3394f9a7200d6b088553bf38e688620cd27af.tar.gz linux-ccd3394f9a7200d6b088553bf38e688620cd27af.tar.bz2 linux-ccd3394f9a7200d6b088553bf38e688620cd27af.zip | |
NFSD: Prevent a potential integer overflow
commit 7f33b92e5b18e904a481e6e208486da43e4dc841 upstream.
If the tag length is >= U32_MAX - 3 then the "length + 4" addition
can result in an integer overflow. Address this by splitting the
decoding into several steps so that decode_cb_compound4res() does
not have to perform arithmetic on the unsafe length value.
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: stable@vger.kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/workqueue.c')
0 files changed, 0 insertions, 0 deletions