Bug 2363493 (CVE-2022-49770) - CVE-2022-49770 kernel: ceph: avoid putting the realm twice when decoding snaps fails
Summary: CVE-2022-49770 kernel: ceph: avoid putting the realm twice when decoding snap...
Keywords:
Status: NEW
Alias: CVE-2022-49770
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-01 15:06 UTC by OSIDB Bzimport
Modified: 2025-06-06 00:28 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-05-01 15:06:57 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ceph: avoid putting the realm twice when decoding snaps fails

When decoding the snaps fails it maybe leaving the 'first_realm'
and 'realm' pointing to the same snaprealm memory. And then it'll
put it twice and could cause random use-after-free, BUG_ON, etc
issues.
Comment 1 Avinash Hanwate 2025-05-02 05:45:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050115-CVE-2022-49770-0b74@gregkh/T
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