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| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2026-03-31 18:21:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-11 15:29:19 +0300 |
| commit | 4eaff1728d0e69b95933412241bbccf4f797dba8 (patch) | |
| tree | 3e83226e0b54dcd7033c9c980c141aebe33a992a /drivers/target | |
| parent | e5a75bf026c686b91a7dc6f9c5caf5016745d1fe (diff) | |
| download | linux-4eaff1728d0e69b95933412241bbccf4f797dba8.tar.xz | |
scsi: target: file: Use kzalloc_flex for aio_cmd
[ Upstream commit 01f784fc9d0ab2a6dac45ee443620e517cb2a19b ]
The target_core_file doesn't initialize the aio_cmd->iocb for the
ki_write_stream. When a write command fd_execute_rw_aio() is executed,
we may get a bogus ki_write_stream value, causing unintended write
failure status when checking iocb->ki_write_stream > max_write_streams
in the block device.
Let's just use kzalloc_flex when allocating the aio_cmd and let
ki_write_stream=0 to fix this issue.
Fixes: 732f25a2895a ("fs: add a write stream field to the kiocb")
Fixes: c27683da6406 ("block: expose write streams for block device nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://patch.msgid.link/f1a2f81c62f043e31f80bb92d5f29893400c8ee2.1773450782.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[ changed kmalloc() to kzalloc() ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index b2610073e8cc..26d52f1f36df 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -276,7 +276,7 @@ fd_execute_rw_aio(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, ssize_t len = 0; int ret = 0, i; - aio_cmd = kmalloc(struct_size(aio_cmd, bvecs, sgl_nents), GFP_KERNEL); + aio_cmd = kzalloc(struct_size(aio_cmd, bvecs, sgl_nents), GFP_KERNEL); if (!aio_cmd) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; |