UBUNTU-CVE-2024-26606
In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In (e)poll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDER_WRITE_READ without a read buffer and then make use of epoll_wait() or similar to consume any responses afterwards. It is then crucial that epoll threads are signaled via wakeup when they queue their own work. Otherwise, they risk waiting indefinitely for an event leaving their work unhandled. What is worse, subsequent commands won't trigger a wakeup either as the thread has pending work.
02 / AFFECTED SOFTWARE
Affected packages
9 explicit affected versions
29 explicit affected versions
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36 explicit affected versions
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11 explicit affected versions
35 explicit affected versions
3 explicit affected versions
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18 explicit affected versions
5 explicit affected versions
30 explicit affected versions
86 explicit affected versions
13 explicit affected versions
4 explicit affected versions
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21 explicit affected versions
9 explicit affected versions
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10 explicit affected versions
41 explicit affected versions
7 explicit affected versions
12 explicit affected versions
34 explicit affected versions
12 explicit affected versions
12 explicit affected versions
7 explicit affected versions
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10 explicit affected versions
37 explicit affected versions
11 explicit affected versions
10 explicit affected versions
23 explicit affected versions
1 explicit affected versions
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29 explicit affected versions
78 explicit affected versions
13 explicit affected versions
47 explicit affected versions
73 explicit affected versions
45 explicit affected versions
89 explicit affected versions
7 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
88 explicit affected versions
36 explicit affected versions
28 explicit affected versions
44 explicit affected versions
10 explicit affected versions
26 explicit affected versions
23 explicit affected versions
1 explicit affected versions
13 explicit affected versions
47 explicit affected versions
16 explicit affected versions
47 explicit affected versions
37 explicit affected versions
3 explicit affected versions
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12 explicit affected versions
34 explicit affected versions
27 explicit affected versions
20 explicit affected versions
1 explicit affected versions
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5 explicit affected versions
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1 explicit affected versions
10 explicit affected versions
11 explicit affected versions
77 explicit affected versions
13 explicit affected versions
41 explicit affected versions
7 explicit affected versions
39 explicit affected versions
10 explicit affected versions
12 explicit affected versions
12 explicit affected versions
76 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
33 explicit affected versions
37 explicit affected versions
12 explicit affected versions
38 explicit affected versions
37 explicit affected versions
9 explicit affected versions
36 explicit affected versions
11 explicit affected versions
44 explicit affected versions
8 explicit affected versions
7 explicit affected versions
18 explicit affected versions
48 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
42 explicit affected versions
11 explicit affected versions
43 explicit affected versions
42 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
77 explicit affected versions
4 explicit affected versions
66 explicit affected versions
9 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In (e)poll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDER_WRITE_READ without a read buffer and then make use of epoll_wait() or similar to consume any responses afterwards. It is then crucial that epoll threads are signaled via wakeup when they queue their own work. Otherwise, they risk waiting indefinitely for an event leaving their work unhandled. What is worse, subsequent commands won't trigger a wakeup either as the thread has pending work.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/97830f3c3088638ff90b20dfba2eb4d487bf14d7
- https://git.kernel.org/stable/c/42beab162dcee1e691ee4934292d51581c29df61
- https://git.kernel.org/stable/c/82722b453dc2f967b172603e389ee7dc1b3137cc
- https://git.kernel.org/stable/c/90e09c016d72b91e76de25f71c7b93d94cc3c769
- https://git.kernel.org/stable/c/93b372c39c40cbf179e56621e6bc48240943af69
- https://git.kernel.org/stable/c/97830f3c3088638ff90b20dfba2eb4d487bf14d7
- https://git.kernel.org/stable/c/a423042052ec2bdbf1e552e621e6a768922363cc
- https://git.kernel.org/stable/c/a7ae586f6f6024f490b8546c8c84670f96bb9b68
- https://git.kernel.org/stable/c/dd64bb8329ce0ea27bc557e4160c2688835402ac
- https://ubuntu.com/security/CVE-2024-26606
- https://ubuntu.com/security/notices/USN-6766-1
- https://ubuntu.com/security/notices/USN-6766-2
- https://ubuntu.com/security/notices/USN-6766-3
- https://ubuntu.com/security/notices/USN-6767-1
- https://ubuntu.com/security/notices/USN-6767-2
- https://ubuntu.com/security/notices/USN-6795-1
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6895-1
- https://ubuntu.com/security/notices/USN-6895-2
- https://ubuntu.com/security/notices/USN-6895-3
- https://ubuntu.com/security/notices/USN-6895-4
- https://ubuntu.com/security/notices/USN-6900-1
- https://www.cve.org/CVERecord?id=CVE-2024-26606