Bug 2117258 - kernel: use-after-free caused by rose_t0timer_expiry in net/rose/rose_route.c
Summary: kernel: use-after-free caused by rose_t0timer_expiry in net/rose/rose_route.c
Keywords:
Status: CLOSED DUPLICATE of bug 2104114
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2117259
Blocks: 2105771
TreeView+ depends on / blocked
 
Reported: 2022-08-10 12:41 UTC by Alex
Modified: 2022-09-08 07:47 UTC (History)
51 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw use after free in the Linux kernel Amateur Radio X.25 PLP (Rose) functionality was found. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.
Clone Of:
Environment:
Last Closed: 2022-08-15 13:03:24 UTC
Embargoed:

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Description Alex 2022-08-10 12:41:40 UTC 
A flaw in Linux Kernel found.
A use-after-free vulnerabilities caused by rose_t0timer_expiry in net/rose/rose_route.c of linux can lead to Linux Kernel crash or potentially privileges escalation.
Attackers can use an active rose network interface, then, call close(), bind(), connect() and write() syscalls to crash Linux kernel.

Reference:
https://github.com/torvalds/linux/commit/148ca04518070910739dfc4eeda765057856403d
Comment 1 Alex 2022-08-10 12:42:03 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2117259]
Comment 2 Justin M. Forbes 2022-08-11 13:40:20 UTC 
This was fixed for Fedora with the 5.18.11 stable kernel updates.
Comment 3 Alex 2022-09-08 07:47:44 UTC 

*** This bug has been marked as a duplicate of bug 2104114 ***
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