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authorAnton Blanchard <anton@samba.org>2012-03-16 10:28:07 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-16 17:01:41 -0700
commit2c724fb92732c0b2a5629eb8af74e82eb62ac947 (patch)
tree3364c51ab27f410823e1ed4e7c3e4515d6b8b93c /fs/dlm/lock.c
parent0c4d0670f6e54f8507c30c01928cc9ff630ca497 (diff)
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afs: Read of file returns EBADMSG
A read of a large file on an afs mount failed: # cat junk.file > /dev/null cat: junk.file: Bad message Looking at the trace, call->offset wrapped since it is only an unsigned short. In afs_extract_data: _enter("{%u},{%zu},%d,,%zu", call->offset, len, last, count); ... if (call->offset < count) { if (last) { _leave(" = -EBADMSG [%d < %zu]", call->offset, count); return -EBADMSG; } Which matches the trace: [cat ] ==> afs_extract_data({65132},{524},1,,65536) [cat ] <== afs_extract_data() = -EBADMSG [0 < 65536] call->offset went from 65132 to 0. Fix this by making call->offset an unsigned int. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David Howells <dhowells@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/dlm/lock.c')
0 files changed, 0 insertions, 0 deletions
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