CVE-2022-49720

published 2025-02-26

CVE-2022-49720: 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…

Priority P3 37 high 7.8 CVSS 3.1

AV L AC L PR L UI N S U C H I H A H

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

Affected

14 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 5.18.14-1 (bookworm)	linux 5.18.14-1 (bookworm)
linux	linux	—	—
linux	linux	>= 20e4d813931961fe26d26a1e98b3aba6ec00b130 < 7fa28a7c3d74933a4fc22d341b60927952f31c19	7fa28a7c3d74933a4fc22d341b60927952f31c19
linux	linux	>= 20e4d813931961fe26d26a1e98b3aba6ec00b130 < b5e65ef044d627effdc2599040b6d204e003f955	b5e65ef044d627effdc2599040b6d204e003f955
linux	linux	>= 20e4d813931961fe26d26a1e98b3aba6ec00b130 < b202a0bd2580ee5b0453772c46d464152fafff73	b202a0bd2580ee5b0453772c46d464152fafff73
linux	linux	>= 20e4d813931961fe26d26a1e98b3aba6ec00b130 < 14dc7a18abbe4176f5626c13c333670da8e06aa1	14dc7a18abbe4176f5626c13c333670da8e06aa1
linux	linux_kernel	—	—
linux	linux_kernel	>= 0 < 5.10.127-1	5.10.127-1
linux	linux_kernel	>= 0 < 5.18.14-1	5.18.14-1
linux	linux_kernel	>= 0 < 5.18.14-1	5.18.14-1
linux	linux_kernel	>= 0 < 5.18.14-1	5.18.14-1
linux	linux_kernel	>= 4.16 < 5.10.214	5.10.214
linux	linux_kernel	>= 5.11 < 5.15.49	5.15.49
linux	linux_kernel	>= 5.16 < 5.18.6	5.18.6

CVSS provenance

nvd v3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

osv 7.8 HIGH

vendor_debian 7.8 HIGH

vendor_redhat 7.8 HIGH

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CWE-129