CVE-2022-49689
Detail
Rejected This CVE has been marked Rejected in the CVE List. These CVEs are stored in the NVD, but do not show up in search results by default.
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
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CVSS 4.0 Severity and Vector Strings:
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CVSS 3.x Severity and Vector Strings:
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not yet provided.
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
3 change records found show changes
CVE Modified by kernel.org 2/26/2025 8:15:34 AM
Action
Type
Old Value
New Value
Changed
Description
Record truncated, showing 2048 of 3998 characters. View Entire Change Record In the Linux kernel, the following vulnerability has been resolved:
xen-blkfront: Handle NULL gendisk
When a VBD is not fully created and then closed, the kernel can have a
NULL pointer dereference:
The reproducer is trivial:
[user@dom0 ~]$ sudo xl block-attach work backend=sys-usb vdev=xvdi target=/dev/sdz
[user@dom0 ~]$ xl block-list work
Vdev BE handle state evt-ch ring-ref BE-path
51712 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51712
51728 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51728
51744 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51744
51760 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51760
51840 3 241 3 -1 -1 /local/domain/3/backend/vbd/241/51840
^ note state, the /dev/sdz doesn't exist in the backend
[user@dom0 ~]$ sudo xl block-detach work xvdi
[user@dom0 ~]$ xl block-list work
Vdev BE handle state evt-ch ring-ref BE-path
work is an invalid domain identifier
And its console has:
BUG: kernel NULL pointer dereference, address: 0000000000000050
PGD 80000000edebb067 P4D 80000000edebb067 PUD edec2067 PMD 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 52 Comm: xenwatch Not tainted 5.16.18-2.43.fc32.qubes.x86_64 #1
RIP: 0010:blk_mq_stop_hw_queues+0x5/0x40
Code: 00 48 83 e0 fd 83 c3 01 48 89 85 a8 00 00 00 41 39 5c 24 50 77 c0 5b 5d 41 5c 41 5d c3 c3 0f 1f 80 00 00 00 00 0f 1f 44 00 00 <8b> 47 50 85 c0 74 32 41 54 49 89 fc 55 53 31 db 49 8b 44 24 48 48
RSP: 0018:ffffc90000bcfe98 EFLAGS: 00010293
RAX: ffffffffc0008370 RBX: 0000000000000005 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000
RBP: ffff88800775f000 R08: 0000000000000001 R09: ffff888006e620b8
R10: ffff888006e620b0 R11: f000000000000000 R12: ffff8880bff39000
R13: ffff8880bff39000 R14: 0000000000000000 R15: ffff88800604be00
FS: 0000000000000000(0000) GS:ffff8880f3300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000050 CR3: 000000
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Removed
Reference
kernel.org: https://git.kernel.org/stable/c/db403bc872af09360f5c80f83dc3b360f0be49af
Removed
Reference
kernel.org: https://git.kernel.org/stable/c/f9710c357e5bbf64d7ce45ba0bc75a52222491c1
Removed
Reference
kernel.org: https://git.kernel.org/stable/c/ffa12a326415dfe5fc21e66d9d2b86896b4c9eaf
CVE Rejected by kernel.org 2/26/2025 8:15:34 AM
Action
Type
Old Value
New Value
New CVE Received from kernel.org 2/26/2025 2:01:43 AM
Action
Type
Old Value
New Value
Added
Description
Record truncated, showing 2048 of 3998 characters. View Entire Change Record In the Linux kernel, the following vulnerability has been resolved:
xen-blkfront: Handle NULL gendisk
When a VBD is not fully created and then closed, the kernel can have a
NULL pointer dereference:
The reproducer is trivial:
[user@dom0 ~]$ sudo xl block-attach work backend=sys-usb vdev=xvdi target=/dev/sdz
[user@dom0 ~]$ xl block-list work
Vdev BE handle state evt-ch ring-ref BE-path
51712 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51712
51728 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51728
51744 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51744
51760 0 241 4 -1 -1 /local/domain/0/backend/vbd/241/51760
51840 3 241 3 -1 -1 /local/domain/3/backend/vbd/241/51840
^ note state, the /dev/sdz doesn't exist in the backend
[user@dom0 ~]$ sudo xl block-detach work xvdi
[user@dom0 ~]$ xl block-list work
Vdev BE handle state evt-ch ring-ref BE-path
work is an invalid domain identifier
And its console has:
BUG: kernel NULL pointer dereference, address: 0000000000000050
PGD 80000000edebb067 P4D 80000000edebb067 PUD edec2067 PMD 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 52 Comm: xenwatch Not tainted 5.16.18-2.43.fc32.qubes.x86_64 #1
RIP: 0010:blk_mq_stop_hw_queues+0x5/0x40
Code: 00 48 83 e0 fd 83 c3 01 48 89 85 a8 00 00 00 41 39 5c 24 50 77 c0 5b 5d 41 5c 41 5d c3 c3 0f 1f 80 00 00 00 00 0f 1f 44 00 00 <8b> 47 50 85 c0 74 32 41 54 49 89 fc 55 53 31 db 49 8b 44 24 48 48
RSP: 0018:ffffc90000bcfe98 EFLAGS: 00010293
RAX: ffffffffc0008370 RBX: 0000000000000005 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000
RBP: ffff88800775f000 R08: 0000000000000001 R09: ffff888006e620b8
R10: ffff888006e620b0 R11: f000000000000000 R12: ffff8880bff39000
R13: ffff8880bff39000 R14: 0000000000000000 R15: ffff88800604be00
FS: 0000000000000000(0000) GS:ffff8880f3300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000050 CR3: 000000
Added
Reference
https://git.kernel.org/stable/c/db403bc872af09360f5c80f83dc3b360f0be49af
Added
Reference
https://git.kernel.org/stable/c/f9710c357e5bbf64d7ce45ba0bc75a52222491c1
Added
Reference
https://git.kernel.org/stable/c/ffa12a326415dfe5fc21e66d9d2b86896b4c9eaf
Quick Info
CVE Dictionary Entry: CVE-2022-49689 NVD
Published Date: 02/26/2025 NVD
Last Modified: 02/26/2025
Source: kernel.org
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