UBUNTU-CVE-2024-57977
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.
02 / AFFECTED SOFTWARE
Affected packages
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
6 explicit affected versions
23 explicit affected versions
96 explicit affected versions
28 explicit affected versions
11 explicit affected versions
39 explicit affected versions
45 explicit affected versions
63 explicit affected versions
50 explicit affected versions
12 explicit affected versions
19 explicit affected versions
6 explicit affected versions
73 explicit affected versions
24 explicit affected versions
58 explicit affected versions
76 explicit affected versions
66 explicit affected versions
59 explicit affected versions
10 explicit affected versions
19 explicit affected versions
26 explicit affected versions
65 explicit affected versions
191 explicit affected versions
7 explicit affected versions
64 explicit affected versions
23 explicit affected versions
104 explicit affected versions
106 explicit affected versions
13 explicit affected versions
85 explicit affected versions
25 explicit affected versions
35 explicit affected versions
25 explicit affected versions
18 explicit affected versions
24 explicit affected versions
118 explicit affected versions
64 explicit affected versions
13 explicit affected versions
4 explicit affected versions
121 explicit affected versions
23 explicit affected versions
33 explicit affected versions
60 explicit affected versions
29 explicit affected versions
5 explicit affected versions
7 explicit affected versions
12 explicit affected versions
111 explicit affected versions
4 explicit affected versions
56 explicit affected versions
12 explicit affected versions
23 explicit affected versions
14 explicit affected versions
1 explicit affected versions
7 explicit affected versions
3 explicit affected versions
93 explicit affected versions
12 explicit affected versions
109 explicit affected versions
117 explicit affected versions
12 explicit affected versions
104 explicit affected versions
120 explicit affected versions
19 explicit affected versions
18 explicit affected versions
15 explicit affected versions
10 explicit affected versions
10 explicit affected versions
37 explicit affected versions
5 explicit affected versions
13 explicit affected versions
21 explicit affected versions
40 explicit affected versions
1 explicit affected versions
26 explicit affected versions
13 explicit affected versions
144 explicit affected versions
14 explicit affected versions
1 explicit affected versions
29 explicit affected versions
96 explicit affected versions
13 explicit affected versions
70 explicit affected versions
22 explicit affected versions
23 explicit affected versions
1 explicit affected versions
33 explicit affected versions
87 explicit affected versions
65 explicit affected versions
108 explicit affected versions
28 explicit affected versions
10 explicit affected versions
23 explicit affected versions
10 explicit affected versions
1 explicit affected versions
188 explicit affected versions
28 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
3 explicit affected versions
107 explicit affected versions
138 explicit affected versions
2 explicit affected versions
56 explicit affected versions
92 explicit affected versions
50 explicit affected versions
132 explicit affected versions
66 explicit affected versions
165 explicit affected versions
154 explicit affected versions
26 explicit affected versions
25 explicit affected versions
41 explicit affected versions
1 explicit affected versions
16 explicit affected versions
13 explicit affected versions
28 explicit affected versions
139 explicit affected versions
64 explicit affected versions
51 explicit affected versions
16 explicit affected versions
67 explicit affected versions
31 explicit affected versions
54 explicit affected versions
116 explicit affected versions
93 explicit affected versions
1 explicit affected versions
4 explicit affected versions
2 explicit affected versions
74 explicit affected versions
13 explicit affected versions
24 explicit affected versions
12 explicit affected versions
53 explicit affected versions
27 explicit affected versions
40 explicit affected versions
1 explicit affected versions
1 explicit affected versions
98 explicit affected versions
24 explicit affected versions
8 explicit affected versions
30 explicit affected versions
5 explicit affected versions
3 explicit affected versions
8 explicit affected versions
1 explicit affected versions
10 explicit affected versions
4 explicit affected versions
27 explicit affected versions
13 explicit affected versions
13 explicit affected versions
59 explicit affected versions
7 explicit affected versions
140 explicit affected versions
3 explicit affected versions
94 explicit affected versions
94 explicit affected versions
57 explicit affected versions
10 explicit affected versions
12 explicit affected versions
15 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
32 explicit affected versions
14 explicit affected versions
38 explicit affected versions
167 explicit affected versions
9 explicit affected versions
55 explicit affected versions
11 explicit affected versions
21 explicit affected versions
7 explicit affected versions
66 explicit affected versions
7 explicit affected versions
35 explicit affected versions
97 explicit affected versions
67 explicit affected versions
121 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
64 explicit affected versions
56 explicit affected versions
13 explicit affected versions
43 explicit affected versions
62 explicit affected versions
10 explicit affected versions
8 explicit affected versions
26 explicit affected versions
14 explicit affected versions
92 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
69 explicit affected versions
21 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/ade81479c7dda1ce3eedb215c78bc615bbd04f06
- https://git.kernel.org/stable/c/46576834291869457d4772bb7df72d7c2bb3d57f
- https://git.kernel.org/stable/c/972486d37169fe85035e81b8c5dff21f70df1173
- https://git.kernel.org/stable/c/ade81479c7dda1ce3eedb215c78bc615bbd04f06
- https://git.kernel.org/stable/c/c3a3741db8c1202aa959c77df3a4c361612d1eb1
- https://ubuntu.com/security/CVE-2024-57977
- https://ubuntu.com/security/notices/USN-7510-1
- https://ubuntu.com/security/notices/USN-7510-2
- https://ubuntu.com/security/notices/USN-7510-3
- https://ubuntu.com/security/notices/USN-7510-4
- https://ubuntu.com/security/notices/USN-7510-5
- https://ubuntu.com/security/notices/USN-7510-6
- https://ubuntu.com/security/notices/USN-7510-7
- https://ubuntu.com/security/notices/USN-7510-8
- https://ubuntu.com/security/notices/USN-7511-1
- https://ubuntu.com/security/notices/USN-7511-2
- https://ubuntu.com/security/notices/USN-7511-3
- https://ubuntu.com/security/notices/USN-7512-1
- https://ubuntu.com/security/notices/USN-7516-1
- https://ubuntu.com/security/notices/USN-7516-2
- https://ubuntu.com/security/notices/USN-7516-3
- https://ubuntu.com/security/notices/USN-7516-4
- https://ubuntu.com/security/notices/USN-7516-5
- https://ubuntu.com/security/notices/USN-7516-6
- https://ubuntu.com/security/notices/USN-7516-7
- https://ubuntu.com/security/notices/USN-7516-8
- https://ubuntu.com/security/notices/USN-7516-9
- https://ubuntu.com/security/notices/USN-7517-1
- https://ubuntu.com/security/notices/USN-7517-2
- https://ubuntu.com/security/notices/USN-7517-3
- https://ubuntu.com/security/notices/USN-7518-1
- https://ubuntu.com/security/notices/USN-7521-1
- https://ubuntu.com/security/notices/USN-7521-2
- https://ubuntu.com/security/notices/USN-7521-3
- https://ubuntu.com/security/notices/USN-7539-1
- https://ubuntu.com/security/notices/USN-7540-1
- https://ubuntu.com/security/notices/USN-7593-1
- https://ubuntu.com/security/notices/USN-7602-1
- https://ubuntu.com/security/notices/USN-7640-1
- https://ubuntu.com/security/notices/USN-7703-1
- https://ubuntu.com/security/notices/USN-7703-2
- https://ubuntu.com/security/notices/USN-7703-3
- https://ubuntu.com/security/notices/USN-7703-4
- https://ubuntu.com/security/notices/USN-7719-1
- https://ubuntu.com/security/notices/USN-7737-1
- https://www.cve.org/CVERecord?id=CVE-2024-57977