CVE-2022-48675

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-48675
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48675.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-48675
Related
Published
2024-05-03T15:15:07Z
Modified
2024-09-18T03:22:32.707830Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

IB/core: Fix a nested dead lock as part of ODP flow

Fix a nested dead lock as part of ODP flow by using mmput_async().

From the below call trace [1] can see that calling mmput() once we have the umemodp->umemmutex locked as required by ibumemodpmapdmaandlock() might trigger in the same task the exitmmap()->mmunotifierrelease()->mlx5ibinvalidaterange() which may dead lock when trying to lock the same mutex.

Moving to use mmputasync() will solve the problem as the above exitmmap() flow will be called in other task and will be executed once the lock will be available.

[1] [64843.077665] task:kworker/u133:2 state:D stack: 0 pid:80906 ppid: 2 flags:0x00004000 [64843.077672] Workqueue: mlx5ibpagefault mlx5ibeqepfaction [mlx5ib] [64843.077719] Call Trace: [64843.077722] <TASK> [64843.077724] _schedule+0x23d/0x590 [64843.077729] schedule+0x4e/0xb0 [64843.077735] schedulepreemptdisabled+0xe/0x10 [64843.077740] _mutexlock.constprop.0+0x263/0x490 [64843.077747] _mutexlockslowpath+0x13/0x20 [64843.077752] mutexlock+0x34/0x40 [64843.077758] mlx5ibinvalidaterange+0x48/0x270 [mlx5ib] [64843.077808] _mmunotifierrelease+0x1a4/0x200 [64843.077816] exitmmap+0x1bc/0x200 [64843.077822] ? walkpagerange+0x9c/0x120 [64843.077828] ? _condresched+0x1a/0x50 [64843.077833] ? mutexlock+0x13/0x40 [64843.077839] ? uprobeclearstate+0xac/0x120 [64843.077860] mmput+0x5f/0x140 [64843.077867] ibumemodpmapdmaandlock+0x21b/0x580 [ibcore] [64843.077931] pagefaultrealmr+0x9a/0x140 [mlx5ib] [64843.077962] pagefaultmr+0xb4/0x550 [mlx5ib] [64843.077992] pagefaultsingledatasegment.constprop.0+0x2ac/0x560 [mlx5ib] [64843.078022] mlx5ibeqepfaction+0x528/0x780 [mlx5ib] [64843.078051] processonework+0x22b/0x3d0 [64843.078059] workerthread+0x53/0x410 [64843.078065] ? processonework+0x3d0/0x3d0 [64843.078073] kthread+0x12a/0x150 [64843.078079] ? setkthreadstruct+0x50/0x50 [64843.078085] retfromfork+0x22/0x30 [64843.078093] </TASK>

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.148-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.19.11-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.19.11-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}