Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: udp: fix race between close() and udp_abort() Kaustubh reported and diagnosed a panic in udp_lib_lookup(). The root cause is udp_abort() racing with close(). Both racing functions acquire the socket lock, but udp{v6}_destroy_sock() release it before performing destructive actions. We can't easily extend the socket lock scope to avoid the race, instead use the SOCK_DEAD flag to prevent udp_abort from doing any action when the critical race happens. Diagnosed-and-tested-by: Kaustubh Pandey <kapandey@codeaurora.org>
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5d77dca82839ef016a93ad7acd7058b14d967752 before e3c36c773aed0fef8b1d3d555b43393ec564400f; affected 5d77dca82839ef016a93ad7acd7058b14d967752 before a0882f68f54f7a8b6308261acee9bd4faab5a69e; affected 5d77dca82839ef016a93ad7acd7058b14d967752 before 2f73448041bd0682d4b552cfd314ace66107f1ad; affected 5d77dca82839ef016a93ad7acd7058b14d967752 before 5a88477c1c85e4baa51e91f2d40f2166235daa56; affected 5d77dca82839ef016a93ad7acd7058b14d967752 before 8729ec8a2238152a4afc212a331a6cd2c61aeeac; affected 5d77dca82839ef016a93ad7acd7058b14d967752 before 65310b0aff86980a011c7c7bfa487a333d4ca241; affected 5d77dca82839ef016a93ad7acd7058b14d967752 before a8b897c7bcd47f4147d066e22cc01d1026d7640e |
| Linux / Linux | affected 4.9; unaffected 0 before 4.9; unaffected 4.9.274 through 4.9.*; unaffected 4.14.238 through 4.14.*; unaffected 4.19.196 through 4.19.*; unaffected 5.4.128 through 5.4.*; unaffected 5.10.46 through 5.10.*; unaffected 5.12.13 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f
- https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e
- https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad
- https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56
- https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac
- https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241
- https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/e3c36c773aed0fef8b1d3d555b43393ec564400f
- https://git.kernel.org/stable/c/a0882f68f54f7a8b6308261acee9bd4faab5a69e
- https://git.kernel.org/stable/c/2f73448041bd0682d4b552cfd314ace66107f1ad
- https://git.kernel.org/stable/c/5a88477c1c85e4baa51e91f2d40f2166235daa56
- https://git.kernel.org/stable/c/8729ec8a2238152a4afc212a331a6cd2c61aeeac
- https://git.kernel.org/stable/c/65310b0aff86980a011c7c7bfa487a333d4ca241
- https://git.kernel.org/stable/c/a8b897c7bcd47f4147d066e22cc01d1026d7640e