| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-49160: scsi: qla2xxx: Fix crash during module load unload test |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: qla2xxx: Fix crash during module load unload test |
| |
| During purex packet handling the driver was incorrectly freeing a |
| pre-allocated structure. Fix this by skipping that entry. |
| |
| System crashed with the following stack during a module unload test. |
| |
| Call Trace: |
| sbitmap_init_node+0x7f/0x1e0 |
| sbitmap_queue_init_node+0x24/0x150 |
| blk_mq_init_bitmaps+0x3d/0xa0 |
| blk_mq_init_tags+0x68/0x90 |
| blk_mq_alloc_map_and_rqs+0x44/0x120 |
| blk_mq_alloc_set_map_and_rqs+0x63/0x150 |
| blk_mq_alloc_tag_set+0x11b/0x230 |
| scsi_add_host_with_dma.cold+0x3f/0x245 |
| qla2x00_probe_one+0xd5a/0x1b80 [qla2xxx] |
| |
| Call Trace with slub_debug and debug kernel: |
| kasan_report_invalid_free+0x50/0x80 |
| __kasan_slab_free+0x137/0x150 |
| slab_free_freelist_hook+0xc6/0x190 |
| kfree+0xe8/0x2e0 |
| qla2x00_free_device+0x3bb/0x5d0 [qla2xxx] |
| qla2x00_remove_one+0x668/0xcf0 [qla2xxx] |
| |
| The Linux kernel CVE team has assigned CVE-2022-49160 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.9 with commit 62e9dd177732843ae6c5b9d2ed61e7c9538fa276 and fixed in 5.15.54 with commit 9b7eb92dac240ab3bc83e188d83a3df834b41eb2 |
| Issue introduced in 5.9 with commit 62e9dd177732843ae6c5b9d2ed61e7c9538fa276 and fixed in 5.16.19 with commit 213e57b42537f1a2e5395caa9d7189854133ed12 |
| Issue introduced in 5.9 with commit 62e9dd177732843ae6c5b9d2ed61e7c9538fa276 and fixed in 5.17.2 with commit 67f744f73eba870ab96411d0310e831a4adc3713 |
| Issue introduced in 5.9 with commit 62e9dd177732843ae6c5b9d2ed61e7c9538fa276 and fixed in 5.18 with commit 0972252450f90db56dd5415a20e2aec21a08d036 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2022-49160 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/scsi/qla2xxx/qla_os.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/9b7eb92dac240ab3bc83e188d83a3df834b41eb2 |
| https://git.kernel.org/stable/c/213e57b42537f1a2e5395caa9d7189854133ed12 |
| https://git.kernel.org/stable/c/67f744f73eba870ab96411d0310e831a4adc3713 |
| https://git.kernel.org/stable/c/0972252450f90db56dd5415a20e2aec21a08d036 |
