vulnerability
Debian: CVE-2024-41068: linux, linux-6.1 -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 1 | (AV:L/AC:L/Au:M/C:N/I:N/A:P) | 07/29/2024 | 08/14/2024 | 02/18/2025 |
Description
In the Linux kernel, the following vulnerability has been resolved:
s390/sclp: Fix sclp_init() cleanup on failure
If sclp_init() fails it only partially cleans up: if there are multiple
failing calls to sclp_init() sclp_state_change_event will be added several
times to sclp_reg_list, which results in the following warning:
------------[ cut here ]------------
list_add double add: new=000003ffe1598c10, prev=000003ffe1598bf0, next=000003ffe1598c10.
WARNING: CPU: 0 PID: 1 at lib/list_debug.c:35 __list_add_valid_or_report+0xde/0xf8
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.10.0-rc3
Krnl PSW : 0404c00180000000 000003ffe0d6076a (__list_add_valid_or_report+0xe2/0xf8)
R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3
...
Call Trace:
[] __list_add_valid_or_report+0xe2/0xf8
([] __list_add_valid_or_report+0xde/0xf8)
[] sclp_init+0x40e/0x450
[] do_one_initcall+0x42/0x1e0
[] do_initcalls+0x126/0x150
[] kernel_init_freeable+0x1ba/0x1f8
[] kernel_init+0x2e/0x180
[] __ret_from_fork+0x3c/0x60
[] ret_from_fork+0xa/0x30
Fix this by removing sclp_state_change_event from sclp_reg_list when
sclp_init() fails.
Solution(s)
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