CVE-2022-49217

scsi: pm8001: Fix abort all task initialization

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 01:55 AM UTC

Updated: June 17, 2026 at 05:17 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.10 ≤ v < 4.14.2763.10 ≤ v < 4.19.2383.10 ≤ v < 4.9.3113.10 ≤ v < 5.10.1103.10 ≤ v < 5.15.333.10 ≤ v < 5.16.193.10 ≤ v < 5.17.23.10 ≤ v < 5.183.10 ≤ v < 5.4.1894.10 ≤ v < 4.14.2764.15 ≤ v < 4.19.2384.20 ≤ v < 5.4.1895.11 ≤ v < 5.15.335.16 ≤ v < 5.16.195.17 ≤ v < 5.17.25.5 ≤ v < 5.10.1103.10c6b9ef5779c3e1edfa9de949d2a51252bc347663

Vendor states this is fixed in 16cd02e0951b520bef324adb9a35afcc92501caf (fixed)

Vendor states this is fixed in 1824a21b2cedc5774a5adfa74f5f7b90472d8677 (fixed)

Vendor states this is fixed in 279f318bd7d6e04e6e0bc7b8cd8e190da8fa37a4 (fixed)

Vendor states this is fixed in 326d894adf89f3c707b7784becbe241830daaab6 (fixed)

Vendor states this is fixed in 765674e3b30121782a2b792684554baa48c61f5e (fixed)

Vendor states this is fixed in 7f12845c8389855dbcc67baa068b6832dc4a396e (fixed)

Vendor states this is fixed in 9914461db82caee6c519acfbe10a86fe11bcdeca (fixed)

Vendor states this is fixed in c8db786858d895ac58342f67767b4999ae6538fa (fixed)

Vendor states this is fixed in d6ec4471550cc53e96485a7124c5891e6a38d1c3 (fixed)

Vendor states this is fixed in 3.10 (unaffected)

Vendor states this is fixed in 4.14.276 (unaffected)

Vendor states this is fixed in 4.19.238 (unaffected)