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| author | FUJITA Tomonori <tomof@acm.org> | 2007-08-06 00:31:24 +0900 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.localdomain> | 2007-10-12 14:38:28 -0400 |
| commit | ea312552e94883efc42cfa4651bcf964f3110564 (patch) | |
| tree | a12b5602abef524382c958fc14fd936cb66683cc /drivers/scsi/sg.c | |
| parent | 6b7f123f378743d739377871c0cbfbaf28c7d25a (diff) | |
| download | lwn-ea312552e94883efc42cfa4651bcf964f3110564.tar.gz lwn-ea312552e94883efc42cfa4651bcf964f3110564.zip | |
[SCSI] sg: increase sglist_len of the sg_scatter_hold structure
unsigned short is too small for sizeof(struct scatterlist) *
min(q->max_hw_segments, q->max_phys_segments).
This fixes memory leak with 4096 segments since 16 (likely sg size
with x86) * 4096 sets sglist_len to zero.
This might not happen without sg chaining support.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/sg.c')
| -rw-r--r-- | drivers/scsi/sg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 85d38940a6c9..fdc6618c1f61 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -114,7 +114,7 @@ static struct class_interface sg_interface = { typedef struct sg_scatter_hold { /* holding area for scsi scatter gather info */ unsigned short k_use_sg; /* Count of kernel scatter-gather pieces */ - unsigned short sglist_len; /* size of malloc'd scatter-gather list ++ */ + unsigned sglist_len; /* size of malloc'd scatter-gather list ++ */ unsigned bufflen; /* Size of (aggregate) data buffer */ unsigned b_malloc_len; /* actual len malloc'ed in buffer */ struct scatterlist *buffer;/* scatter list */ |