In the Linux kernel, the following vulnerability has been resolved:
memcg: fix soft lockup in the OOM process
A soft lockup issue was found in the product with about 56,000 tasks were
in the OOM cgroup, it was traversing them when the soft lockup was
triggered.
watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [VM Thread:1503066]
CPU: 2 PID: 1503066 Comm: VM Thread Kdump: loaded Tainted: G
Hardware name: Huawei Cloud OpenStack Nova, BIOS
RIP: 0010:console_unlock+0x343/0x540
RSP: 0000:ffffb751447db9a0 EFLAGS: 00000247 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ffffffff
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000247
RBP: ffffffffafc71f90 R08: 0000000000000000 R09: 0000000000000040
R10: 0000000000000080 R11: 0000000000000000 R12: ffffffffafc74bd0
R13: ffffffffaf60a220 R14: 0000000000000247 R15: 0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2fe6ad91f0 CR3: 00000004b2076003 CR4: 0000000000360ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vprintk_emit+0x193/0x280
printk+0x52/0x6e
dump_task+0x114/0x130
mem_cgroup_scan_tasks+0x76/0x100
dump_header+0x1fe/0x210
oom_kill_process+0xd1/0x100
out_of_memory+0x125/0x570
mem_cgroup_out_of_memory+0xb5/0xd0
try_charge+0x720/0x770
mem_cgroup_try_charge+0x86/0x180
mem_cgroup_try_charge_delay+0x1c/0x40
do_anonymous_page+0xb5/0x390
handle_mm_fault+0xc4/0x1f0
This is because thousands of processes are in the OOM cgroup, it takes a
long time to traverse all of them. As a result, this lead to soft lockup
in the OOM process.
To fix this issue, call 'cond_resched' in the 'mem_cgroup_scan_tasks'
function per 1000 iterations. For global OOM, call
'touch_softlockup_watchdog' per 1000 iterations to avoid this issue.
References
Configurations
Configuration 1 (hide)
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History
13 Mar 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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07 Mar 2025, 20:44
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| References | () https://git.kernel.org/stable/c/972486d37169fe85035e81b8c5dff21f70df1173 - Patch | |
| References | () https://git.kernel.org/stable/c/46576834291869457d4772bb7df72d7c2bb3d57f - Patch | |
| References | () https://git.kernel.org/stable/c/ade81479c7dda1ce3eedb215c78bc615bbd04f06 - Patch | |
| References | () https://git.kernel.org/stable/c/0a09d56e1682c951046bf15542b3e9553046c9f6 - Patch | |
| References | () https://git.kernel.org/stable/c/c3a3741db8c1202aa959c77df3a4c361612d1eb1 - Patch | |
| First Time |
Linux linux Kernel
Linux |
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| CWE | CWE-667 |
07 Mar 2025, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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27 Feb 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
27 Feb 2025, 02:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-02-27 02:15
Updated : 2025-03-13 13:15
NVD link : CVE-2024-57977
Mitre link : CVE-2024-57977
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-667
Improper Locking