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Petersen" , "James E.J. Bottomley" Cc: powenkao@google.com, Alim Akhtar , Bart Van Assche , Bean Huo , Peter Wang , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Two ufs-bsg fixes for issues found by fuzzing /dev/bsg/ufs-bsg* with syzkaller on QEMU's emulated UFS host controller, plus a related fix for the same UIC result byte problem in the peer DME retry path. Patch 1 rejects requests shorter than the UFS BSG request structures. Patch 2 clears the UIC result byte supplied by userspace. Patch 3 clears the stale UIC result byte before peer DME retries. Tested on QEMU arm64: the reproducers no longer trigger. Stanley Jhu (3): scsi: ufs: bsg: Validate request_len before accessing request scsi: ufs: bsg: Clear the UIC result byte before sending UIC commands scsi: ufs: core: Clear stale UIC result byte before peer DME retries drivers/ufs/core/ufs_bsg.c | 9 +++++++++ drivers/ufs/core/ufshcd.c | 2 ++ 2 files changed, 11 insertions(+) -- 2.56.0.385.gd3acb90ef8-goog