Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: 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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 875386b98857822b77ac7f95bdf367b70af5b78c before 4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9; affected 875386b98857822b77ac7f95bdf367b70af5b78c before 8e9f0a0717ba31d5842721627ade1e62d7aec012; affected 875386b98857822b77ac7f95bdf367b70af5b78c before cfe3e2f768d248fd3d965d561d0768a56dd0b9f8; affected 875386b98857822b77ac7f95bdf367b70af5b78c before 5fa1c8226b4532ad7011d295d3ab4ad45df105ae; affected 875386b98857822b77ac7f95bdf367b70af5b78c before 78b1a242fe612a755f2158fd206ee6bb577d18ca |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.120 through 6.6.*; unaffected 6.12.63 through 6.12.*; unaffected 6.17.13 through 6.17.*; unaffected 6.18.2 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9
- https://git.kernel.org/stable/c/8e9f0a0717ba31d5842721627ade1e62d7aec012
- https://git.kernel.org/stable/c/cfe3e2f768d248fd3d965d561d0768a56dd0b9f8
- https://git.kernel.org/stable/c/5fa1c8226b4532ad7011d295d3ab4ad45df105ae
- https://git.kernel.org/stable/c/78b1a242fe612a755f2158fd206ee6bb577d18ca
ADP enrichment
No English description supplied.
No references supplied.