Bug 2132640 (CVE-2022-3424) - CVE-2022-3424 kernel: Use after Free in gru_set_context_option leading to kernel panic
Summary: CVE-2022-3424 kernel: Use after Free in gru_set_context_option leading to ker...
Keywords:
Status: NEW
Alias: CVE-2022-3424
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
: 2132639 (view as bug list)
Depends On: 2132961 2137131 2137132 2137133 2137134
Blocks: 2126811 2175291
TreeView+ depends on / blocked
 
Reported: 2022-10-06 10:01 UTC by Alex
Modified: 2023-09-19 14:13 UTC (History)
55 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A use-after-free flaw was found in the Linux kernel’s SGI GRU driver in the way the first gru_file_unlocked_ioctl function is called by the user, where a fail pass occurs in the gru_check_chiplet_assignment function. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description Alex 2022-10-06 10:01:43 UTC 
A use after free flaw in the Linux Kernel SGI GRU driver in drivers/misc/sgi-gru/grufile.c found. A local user can call gru_file_unlocked_ioctl with GRU_SET_CONTEXT_OPTION and then triggering error path in gru_check_context_placement function. This leads to use after free in gru_unload_context function.

Reference:
https://www.spinics.net/lists/kernel/msg4518970.html


Besides, this is a long existing bug which was introduced in 13 years ago:
https://github.com/torvalds/linux/commit/55484c45dbeca2eec7642932ec3f60f8a2d4bdbf
Comment 1 Alex 2022-10-06 10:31:02 UTC 
*** Bug 2132639 has been marked as a duplicate of this bug. ***
Comment 3 Alex 2022-10-07 11:13:45 UTC 
The latest candidate patch is:
https://lore.kernel.org/all/20221006152643.1694235-1-zyytlz.wz@163.com/

- received the link from the Zheng Wang , see Bug 2126411.
Comment 5 Alex 2022-10-07 11:19:22 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2132961]
Comment 7 Alex 2022-10-23 18:25:49 UTC 
Updated on 2022-10-19 03:17:26 UTC:
"
Here is the newest version of patch. https://lore.kernel.org/all/20221019031445.901570-1-zyytlz.wz@163.com/
"
- received the link from the Zheng Wang , see Bug 2126411.
Comment 13 Justin M. Forbes 2023-01-19 23:05:06 UTC 
This was fixed for Fedora with the 6.0.16 stable kernel update.
Note You need to log in before you can comment on or make changes to this bug.