Vulnerability Details CVE-2024-26831
In the Linux kernel, the following vulnerability has been resolved:
net/handshake: Fix handshake_req_destroy_test1
Recently, handshake_req_destroy_test1 started failing:
Expected handshake_req_destroy_test == req, but
handshake_req_destroy_test == 0000000000000000
req == 0000000060f99b40
not ok 11 req_destroy works
This is because "sock_release(sock)" was replaced with "fput(filp)"
to address a memory leak. Note that sock_release() is synchronous
but fput() usually delays the final close and clean-up.
The delay is not consequential in the other cases that were changed
but handshake_req_destroy_test1 is testing that handshake_req_cancel()
followed by closing the file actually does call the ->hp_destroy
method. Thus the PTR_EQ test at the end has to be sure that the
final close is complete before it checks the pointer.
We cannot use a completion here because if ->hp_destroy is never
called (ie, there is an API bug) then the test will hang.
Reported by: Guenter Roeck <linux@roeck-us.net>
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.6%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2024-26831
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cpe:2.3:o:linux:linux_kernel:6.5.6
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cpe:2.3:o:linux:linux_kernel:6.6
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cpe:2.3:o:linux:linux_kernel:6.6.1
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cpe:2.3:o:linux:linux_kernel:6.6.10
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cpe:2.3:o:linux:linux_kernel:6.6.11
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cpe:2.3:o:linux:linux_kernel:6.6.12
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cpe:2.3:o:linux:linux_kernel:6.6.13
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cpe:2.3:o:linux:linux_kernel:6.6.14
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cpe:2.3:o:linux:linux_kernel:6.6.15
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cpe:2.3:o:linux:linux_kernel:6.6.16
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cpe:2.3:o:linux:linux_kernel:6.6.17
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cpe:2.3:o:linux:linux_kernel:6.6.2
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cpe:2.3:o:linux:linux_kernel:6.6.3
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cpe:2.3:o:linux:linux_kernel:6.6.4
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cpe:2.3:o:linux:linux_kernel:6.6.5
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cpe:2.3:o:linux:linux_kernel:6.6.6
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cpe:2.3:o:linux:linux_kernel:6.6.7
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cpe:2.3:o:linux:linux_kernel:6.6.8
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cpe:2.3:o:linux:linux_kernel:6.6.9
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cpe:2.3:o:linux:linux_kernel:6.7
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cpe:2.3:o:linux:linux_kernel:6.7.1
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cpe:2.3:o:linux:linux_kernel:6.7.2
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cpe:2.3:o:linux:linux_kernel:6.7.3
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cpe:2.3:o:linux:linux_kernel:6.7.4
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cpe:2.3:o:linux:linux_kernel:6.7.5
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cpe:2.3:o:linux:linux_kernel:6.8