CVE-2022-49720
- Source
- https://cve.org/CVERecord?id=CVE-2022-49720
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49720.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49720
- Downstream
- Related
- Published
- 2025-02-26T02:24:34Z
- Modified
- 2026-08-12T03:30:09Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- block: Fix handling of offline queues in blk_mq_alloc_request_hctx()
- Details
-
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
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49720.json" }- References
-
- https://git.kernel.org/stable/c/14dc7a18abbe4176f5626c13c333670da8e06aa1
- https://git.kernel.org/stable/c/7fa28a7c3d74933a4fc22d341b60927952f31c19
- https://git.kernel.org/stable/c/b202a0bd2580ee5b0453772c46d464152fafff73
- https://git.kernel.org/stable/c/b5e65ef044d627effdc2599040b6d204e003f955
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49720.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49720
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced20e4d813931961fe26d26a1e98b3aba6ec00b130Fixed7fa28a7c3d74933a4fc22d341b60927952f31c19Fixedb5e65ef044d627effdc2599040b6d204e003f955Fixedb202a0bd2580ee5b0453772c46d464152fafff73Fixed14dc7a18abbe4176f5626c13c333670da8e06aa1