VULNERABILITY

Amazon Linux AMI: CVE-2022-49720: Security patch for kernel (ALAS-2025-1970)

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Amazon Linux AMI: CVE-2022-49720: Security patch for kernel (ALAS-2025-1970)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
02/26/2025
Created
04/23/2025
Added
04/18/2025
Modified
05/21/2025

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

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2025-1970
  • CVE-2022-49720

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