# CVE-2022-49217: linux: In the Linux kernel, the following vulnerability has been resolved:  scsi: pm8001: Fix abort all task initialization...

CVE-2022-49217 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49217, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49217
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0031
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  scsi: pm8001: Fix abort all task initialization  In pm80xx_send_abort_all(), the n_elem field of the ccb used is not initialized to 0. This missing initialization sometimes lead to the task completion path seeing the ccb with a non-zero n_elem resulting in the execution of invalid dma_unmap_sg() calls in pm8001_ccb_task_free(), causing a crash such as:  [  197.676341] RIP: 0010:iommu_dma_unmap_sg+0x6d/0x280 [  197.700204] RSP: 0018:ffff889bbcf89c88 EFLAGS: 00010012 [  197.705485] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff83d0bda0 [  197.712687] RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff88810dffc0d0 [  197.719887] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8881c790098b [  197.727089] R10: ffffed1038f20131 R11: 0000000000000001 R12: 0000000000000000 [  197.734296] R13: ffff88810dffc0d0 R14: 0000000000000010 R15: 0000000000000000 [  197.741493] FS:  0000000000000000(0000) GS:ffff889bbcf80000(0000) knlGS:0000000000000000 [  197.749659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [  197.755459] CR2: 00007f16c1b42734 CR3: 0000000004814000 CR4: 0000000000350ee0 [  197.762656] Call Trace: [  197.765127]  <IRQ> [  197.767162]  pm8001_ccb_task_free+0x5f1/0x820 [pm80xx] [  197.772364]  ? do_raw_spin_unlock+0x54/0x220 [  197.776680]  pm8001_mpi_task_abort_resp+0x2ce/0x4f0 [pm80xx] [  197.782406]  process_oq+0xe85/0x7890 [pm80xx] [  197.786817]  ? lock_acquire+0x194/0x490 [  197.790697]  ? handle_irq_event+0x10e/0x1b0 [  197.794920]  ? mpi_sata_completion+0x2d70/0x2d70 [pm80xx] [  197.800378]  ? __wake_up_bit+0x100/0x100 [  197.804340]  ? lock_is_held_type+0x98/0x110 [  197.808565]  pm80xx_chip_isr+0x94/0x130 [pm80xx] [  197.813243]  tasklet_action_common.constprop.0+0x24b/0x2f0 [  197.818785]  __do_softirq+0x1b5/0x82d [  197.822485]  ? do_raw_spin_unlock+0x54/0x220 [  197.826799]  __irq_exit_rcu+0x17e/0x1e0 [  197.830678]  irq_exit_rcu+0xa/0x20 [  197.834114]  common_interrupt+0x78/0x90 [  197.840051]  </IRQ> [  197.844236]  <TASK> [  197.848397]  asm_common_interrupt+0x1e/0x40  Avoid this issue by always initializing the ccb n_elem field to 0 in pm8001_send_abort_all(), pm8001_send_read_log() and pm80xx_send_abort_all().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.17.3-1 | [DEBIAN-CVE-2022-49217](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49217.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.17.3-1 | [DEBIAN-CVE-2022-49217](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49217.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.17.3-1 | [DEBIAN-CVE-2022-49217](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49217.md) | Feb 26, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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