In the Linux kernel up to and including 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
linux linux kernel |
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redhat enterprise linux desktop 7.0 |
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redhat enterprise linux workstation 7.0 |
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redhat enterprise linux server 7.0 |
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redhat virtualization host 4.0 |
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redhat enterprise linux server tus 7.6 |
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redhat enterprise linux server eus 7.6 |
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redhat enterprise linux server aus 7.6 |
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redhat openshift container platform 3.11 |
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