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| author | Zilin Guan <zilin@seu.edu.cn> | 2025-11-13 15:12:46 +0000 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-11-19 22:38:27 -0500 |
| commit | 78b1a242fe612a755f2158fd206ee6bb577d18ca (patch) | |
| tree | 20e93d2c05cd5a74090214ed9f8b34ba5ff14e00 /rust/proc-macro2/parse.rs | |
| parent | cda5f23eed84cdca374d60734bf0190138788608 (diff) | |
scsi: qla2xxx: Fix improper freeing of purex item
In qla2xxx_process_purls_iocb(), an item is allocated via
qla27xx_copy_multiple_pkt(), which internally calls
qla24xx_alloc_purex_item().
The qla24xx_alloc_purex_item() function may return a pre-allocated item
from a per-adapter pool for small allocations, instead of dynamically
allocating memory with kzalloc().
An error handling path in qla2xxx_process_purls_iocb() incorrectly uses
kfree() to release the item. If the item was from the pre-allocated
pool, calling kfree() on it is a bug that can lead to memory corruption.
Fix this by using the correct deallocation function,
qla24xx_free_purex_item(), which properly handles both dynamically
allocated and pre-allocated items.
Fixes: 875386b98857 ("scsi: qla2xxx: Add Unsolicited LS Request and Response Support for NVMe")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Link: https://patch.msgid.link/20251113151246.762510-1-zilin@seu.edu.cn
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'rust/proc-macro2/parse.rs')
0 files changed, 0 insertions, 0 deletions