CVE-2022-49217

MEDIUM EPSS 20.5%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
20.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-909

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.10  –  <4.9.311
linuxlinux_kernel*≥4.10  –  <4.14.276
linuxlinux_kernel*≥4.15  –  <4.19.238
linuxlinux_kernel*≥4.20  –  <5.4.189
linuxlinux_kernel*≥5.5  –  <5.10.110
linuxlinux_kernel*≥5.11  –  <5.15.33
linuxlinux_kernel*≥5.16  –  <5.16.19
linuxlinux_kernel*≥5.17  –  <5.17.2

References 9

  • git.kernel.org https://git.kernel.org/stable/c/16cd02e0951b520bef324adb9a35afcc92501caf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1824a21b2cedc5774a5adfa74f5f7b90472d8677
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/279f318bd7d6e04e6e0bc7b8cd8e190da8fa37a4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/326d894adf89f3c707b7784becbe241830daaab6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/765674e3b30121782a2b792684554baa48c61f5e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f12845c8389855dbcc67baa068b6832dc4a396e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9914461db82caee6c519acfbe10a86fe11bcdeca
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8db786858d895ac58342f67767b4999ae6538fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d6ec4471550cc53e96485a7124c5891e6a38d1c3
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/16cd02e0951b520bef324adb9a35afcc92501caf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1824a21b2cedc5774a5adfa74f5f7b90472d8677
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/279f318bd7d6e04e6e0bc7b8cd8e190da8fa37a4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/326d894adf89f3c707b7784becbe241830daaab6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/765674e3b30121782a2b792684554baa48c61f5e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7f12845c8389855dbcc67baa068b6832dc4a396e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9914461db82caee6c519acfbe10a86fe11bcdeca
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8db786858d895ac58342f67767b4999ae6538fa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d6ec4471550cc53e96485a7124c5891e6a38d1c3
    Patch