CVE-2022-49217
scsi: pm8001: Fix abort all task initialization
- Published
- Updated
- Reserved
- Assigned by
- Linux
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().
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.30% · top 77% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < 9914461db82caee6c519acfbe10a86fe11bcdeca
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < d6ec4471550cc53e96485a7124c5891e6a38d1c3
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < 1824a21b2cedc5774a5adfa74f5f7b90472d8677
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < 765674e3b30121782a2b792684554baa48c61f5e
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < 279f318bd7d6e04e6e0bc7b8cd8e190da8fa37a4
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < c8db786858d895ac58342f67767b4999ae6538fa
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < 326d894adf89f3c707b7784becbe241830daaab6
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < 16cd02e0951b520bef324adb9a35afcc92501caf
- affected c6b9ef5779c3e1edfa9de949d2a51252bc347663 – < 7f12845c8389855dbcc67baa068b6832dc4a396e
- affected 3.10
- unaffected < 3.10
- unaffected 4.9.311 – ≤ 4.9.*
- unaffected 4.14.276 – ≤ 4.14.*
- unaffected 4.19.238 – ≤ 4.19.*
- unaffected 5.4.189 – ≤ 5.4.*
- unaffected 5.10.110 – ≤ 5.10.*
- unaffected 5.15.33 – ≤ 5.15.*
- unaffected 5.16.19 – ≤ 5.16.*
- unaffected 5.17.2 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References (9)
- https://git.kernel.org/stable/c/9914461db82caee6c519acfbe10a86fe11bcdeca (opens in a new tab)
- https://git.kernel.org/stable/c/d6ec4471550cc53e96485a7124c5891e6a38d1c3 (opens in a new tab)
- https://git.kernel.org/stable/c/1824a21b2cedc5774a5adfa74f5f7b90472d8677 (opens in a new tab)
- https://git.kernel.org/stable/c/765674e3b30121782a2b792684554baa48c61f5e (opens in a new tab)
- https://git.kernel.org/stable/c/279f318bd7d6e04e6e0bc7b8cd8e190da8fa37a4 (opens in a new tab)
- https://git.kernel.org/stable/c/c8db786858d895ac58342f67767b4999ae6538fa (opens in a new tab)
- https://git.kernel.org/stable/c/326d894adf89f3c707b7784becbe241830daaab6 (opens in a new tab)
- https://git.kernel.org/stable/c/16cd02e0951b520bef324adb9a35afcc92501caf (opens in a new tab)
- https://git.kernel.org/stable/c/7f12845c8389855dbcc67baa068b6832dc4a396e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-49217)Record last updated .