CVE-2022-49720

HIGH EPSS 20.1%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
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: block: Fix handling of offline queues in blk_mq_alloc_request_hctx() This patch prevents that test nvme/004 triggers the following: UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9 index 512 is out of range for type 'long unsigned int [512]' Call Trace: show_stack+0x52/0x58 dump_stack_lvl+0x49/0x5e dump_stack+0x10/0x12 ubsan_epilogue+0x9/0x3b __ubsan_handle_out_of_bounds.cold+0x44/0x49 blk_mq_alloc_request_hctx+0x304/0x310 __nvme_submit_sync_cmd+0x70/0x200 [nvme_core] nvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics] nvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop] nvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop] nvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics] nvmf_dev_write+0xae/0x111 [nvme_fabrics] vfs_write+0x144/0x560 ksys_write+0xb7/0x140 __x64_sys_write+0x42/0x50 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
20.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-129

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥4.16  –  <5.10.214
linuxlinux_kernel*≥5.11  –  <5.15.49
linuxlinux_kernel*≥5.16  –  <5.18.6
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/14dc7a18abbe4176f5626c13c333670da8e06aa1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7fa28a7c3d74933a4fc22d341b60927952f31c19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b202a0bd2580ee5b0453772c46d464152fafff73
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b5e65ef044d627effdc2599040b6d204e003f955
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/14dc7a18abbe4176f5626c13c333670da8e06aa1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7fa28a7c3d74933a4fc22d341b60927952f31c19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b202a0bd2580ee5b0453772c46d464152fafff73
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b5e65ef044d627effdc2599040b6d204e003f955
    Patch