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(parent: 0fd702a) | patch
fs: jfs: fix shift-out-of-bounds in dbDiscardAG
authorHoi Pok Wu <wuhoipok@gmail.com>
Tue, 25 Oct 2022 15:20:45 +0000 (23:20 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Jan 2023 10:41:34 +0000 (11:41 +0100)
commitefad0e33ca3eb3a79f9efcebe54235fb0b28f0a4
tree319cf7eca491d0539f7b682670ac1ed39201cde8tree | snapshot
parent0fd702ad7650e2c4c0579d8b272864124f4199ddcommit | diff
fs: jfs: fix shift-out-of-bounds in dbDiscardAG

[ Upstream commit 25e70c6162f207828dd405b432d8f2a98dbf7082 ]

This should be applied to most URSAN bugs found recently by syzbot,
by guarding the dbMount. As syzbot feeding rubbish into the bmap
descriptor.

Signed-off-by: Hoi Pok Wu <wuhoipok@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/jfs/jfs_dmap.c diff | blob | history
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