UBUNTU-CVE-2024-56694
In the Linux kernel, the following vulnerability has been resolved: bpf: fix recursive lock when verdict program return SK_PASS When the stream_verdict program returns SK_PASS, it places the received skb into its own receive queue, but a recursive lock eventually occurs, leading to an operating system deadlock. This issue has been present since v6.9. ''' sk_psock_strp_data_ready write_lock_bh(&sk->sk_callback_lock) strp_data_ready strp_read_sock read_sock -> tcp_read_sock strp_recv cb.rcv_msg -> sk_psock_strp_read # now stream_verdict return SK_PASS without peer sock assign __SK_PASS = sk_psock_map_verd(SK_PASS, NULL) sk_psock_verdict_apply sk_psock_skb_ingress_self sk_psock_skb_ingress_enqueue sk_psock_data_ready read_lock_bh(&sk->sk_callback_lock) <= dead lock ''' This topic has been discussed before, but it has not been fixed. Previous discussion: https://lore.kernel.org/all/[email protected]
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
60 explicit affected versions
16 explicit affected versions
12 explicit affected versions
15 explicit affected versions
91 explicit affected versions
23 explicit affected versions
8 explicit affected versions
8 explicit affected versions
10 explicit affected versions
44 explicit affected versions
37 explicit affected versions
25 explicit affected versions
33 explicit affected versions
64 explicit affected versions
4 explicit affected versions
1 explicit affected versions
24 explicit affected versions
54 explicit affected versions
10 explicit affected versions
7 explicit affected versions
15 explicit affected versions
12 explicit affected versions
43 explicit affected versions
59 explicit affected versions
50 explicit affected versions
6 explicit affected versions
19 explicit affected versions
6 explicit affected versions
69 explicit affected versions
21 explicit affected versions
54 explicit affected versions
72 explicit affected versions
62 explicit affected versions
55 explicit affected versions
10 explicit affected versions
12 explicit affected versions
19 explicit affected versions
61 explicit affected versions
7 explicit affected versions
100 explicit affected versions
13 explicit affected versions
18 explicit affected versions
35 explicit affected versions
13 explicit affected versions
21 explicit affected versions
19 explicit affected versions
18 explicit affected versions
20 explicit affected versions
64 explicit affected versions
21 explicit affected versions
102 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
26 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
57 explicit affected versions
22 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
52 explicit affected versions
12 explicit affected versions
14 explicit affected versions
7 explicit affected versions
2 explicit affected versions
89 explicit affected versions
12 explicit affected versions
16 explicit affected versions
105 explicit affected versions
113 explicit affected versions
12 explicit affected versions
16 explicit affected versions
100 explicit affected versions
10 explicit affected versions
37 explicit affected versions
1 explicit affected versions
13 explicit affected versions
14 explicit affected versions
10 explicit affected versions
37 explicit affected versions
26 explicit affected versions
13 explicit affected versions
12 explicit affected versions
5 explicit affected versions
29 explicit affected versions
93 explicit affected versions
13 explicit affected versions
66 explicit affected versions
15 explicit affected versions
87 explicit affected versions
61 explicit affected versions
105 explicit affected versions
24 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
103 explicit affected versions
52 explicit affected versions
46 explicit affected versions
62 explicit affected versions
10 explicit affected versions
26 explicit affected versions
20 explicit affected versions
38 explicit affected versions
11 explicit affected versions
13 explicit affected versions
21 explicit affected versions
63 explicit affected versions
16 explicit affected versions
63 explicit affected versions
53 explicit affected versions
3 explicit affected versions
1 explicit affected versions
70 explicit affected versions
51 explicit affected versions
7 explicit affected versions
7 explicit affected versions
20 explicit affected versions
12 explicit affected versions
49 explicit affected versions
2 explicit affected versions
27 explicit affected versions
36 explicit affected versions
17 explicit affected versions
8 explicit affected versions
26 explicit affected versions
20 explicit affected versions
13 explicit affected versions
92 explicit affected versions
13 explicit affected versions
56 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
14 explicit affected versions
38 explicit affected versions
53 explicit affected versions
9 explicit affected versions
51 explicit affected versions
11 explicit affected versions
15 explicit affected versions
7 explicit affected versions
62 explicit affected versions
60 explicit affected versions
13 explicit affected versions
43 explicit affected versions
58 explicit affected versions
10 explicit affected versions
8 explicit affected versions
19 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
14 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: bpf: fix recursive lock when verdict program return SK_PASS When the stream_verdict program returns SK_PASS, it places the received skb into its own receive queue, but a recursive lock eventually occurs, leading to an operating system deadlock. This issue has been present since v6.9. ''' sk_psock_strp_data_ready write_lock_bh(&sk->sk_callback_lock) strp_data_ready strp_read_sock read_sock -> tcp_read_sock strp_recv cb.rcv_msg -> sk_psock_strp_read # now stream_verdict return SK_PASS without peer sock assign __SK_PASS = sk_psock_map_verd(SK_PASS, NULL) sk_psock_verdict_apply sk_psock_skb_ingress_self sk_psock_skb_ingress_enqueue sk_psock_data_ready read_lock_bh(&sk->sk_callback_lock) <= dead lock ''' This topic has been discussed before, but it has not been fixed. Previous discussion: https://lore.kernel.org/all/[email protected]
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/8ca2a1eeadf09862190b2810697702d803ceef2d
- https://git.kernel.org/stable/c/01f1b88acfd79103da0610b45471f6c88ea98d72
- https://git.kernel.org/stable/c/386efa339e08563dd33e83bc951aea5d407fe578
- https://git.kernel.org/stable/c/6694f7acd625ed854bf6342926e771d65dad7f69
- https://git.kernel.org/stable/c/8ca2a1eeadf09862190b2810697702d803ceef2d
- https://git.kernel.org/stable/c/da2bc8a0c8f3ac66fdf980fc59936f851a083561
- https://git.kernel.org/stable/c/f84c5ef6ca23cc2f72f3b830d74f67944684bb05
- https://ubuntu.com/security/CVE-2024-56694
- https://ubuntu.com/security/notices/USN-7276-1
- https://ubuntu.com/security/notices/USN-7277-1
- https://ubuntu.com/security/notices/USN-7310-1
- https://ubuntu.com/security/notices/USN-7387-1
- https://ubuntu.com/security/notices/USN-7387-2
- https://ubuntu.com/security/notices/USN-7387-3
- https://ubuntu.com/security/notices/USN-7388-1
- https://ubuntu.com/security/notices/USN-7389-1
- https://ubuntu.com/security/notices/USN-7390-1
- https://ubuntu.com/security/notices/USN-7391-1
- https://ubuntu.com/security/notices/USN-7392-1
- https://ubuntu.com/security/notices/USN-7392-2
- https://ubuntu.com/security/notices/USN-7392-3
- https://ubuntu.com/security/notices/USN-7392-4
- https://ubuntu.com/security/notices/USN-7393-1
- https://ubuntu.com/security/notices/USN-7401-1
- https://ubuntu.com/security/notices/USN-7407-1
- https://ubuntu.com/security/notices/USN-7413-1
- https://ubuntu.com/security/notices/USN-7421-1
- https://ubuntu.com/security/notices/USN-7449-1
- https://ubuntu.com/security/notices/USN-7449-2
- https://ubuntu.com/security/notices/USN-7450-1
- https://ubuntu.com/security/notices/USN-7451-1
- https://ubuntu.com/security/notices/USN-7452-1
- https://ubuntu.com/security/notices/USN-7453-1
- https://ubuntu.com/security/notices/USN-7458-1
- https://ubuntu.com/security/notices/USN-7459-1
- https://ubuntu.com/security/notices/USN-7459-2
- https://ubuntu.com/security/notices/USN-7463-1
- https://ubuntu.com/security/notices/USN-7468-1
- https://ubuntu.com/security/notices/USN-7523-1
- https://ubuntu.com/security/notices/USN-7524-1
- https://ubuntu.com/security/notices/USN-7539-1
- https://ubuntu.com/security/notices/USN-7540-1
- https://www.cve.org/CVERecord?id=CVE-2024-56694