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scsi: target: file: Use kzalloc_flex for aio_cmd 

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: 732f25a289 ("fs: add a write stream field to the kiocb")
Fixes: c27683da64 ("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>
This commit is contained in:
Thinh Nguyen 2026-03-14 01:17:40 +00:00 committed by Martin K. Petersen
parent d71afa9deb
commit 01f784fc9d
1 changed files with 1 additions and 1 deletions
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2
drivers/target/target_core_file.c
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@ -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_flex(*aio_cmd, bvecs, sgl_nents);
aio_cmd = kzalloc_flex(*aio_cmd, bvecs, sgl_nents);
if (!aio_cmd)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;