Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Fix use of completion ctx after free On admin queue completion handling, if the admin command completed with error we print data from the completion context. The issue is that we already freed the completion context in polling/interrupts handler which means we print data from context in an unknown state (it might be already used again). Change the admin submission flow so alloc/dealloc of the context will be symmetric and dealloc will be called after any potential use of the context.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
68fb9f3e312a36e49fd05ec2d6b668daf2c4931a to < 8c24b5179af260a5f36571c992d29aab1f448544affected68fb9f3e312a36e49fd05ec2d6b668daf2c4931a to < 7ba09d85f177e9f5f64b881f33dbcb57b2cf23d5affected68fb9f3e312a36e49fd05ec2d6b668daf2c4931a to < 0dd98aea1c0c45987fa2dd92f988b0eb1a72c125affected68fb9f3e312a36e49fd05ec2d6b668daf2c4931a to < 1cf95fe5dc5471efea947b4c6f8913da6bc7976eaffected68fb9f3e312a36e49fd05ec2d6b668daf2c4931a to < ef3b06742c8a201d0e83edc9a33a89a4fe3009f8affected
Linux Linux
Default version status: affected
5.12affected0 to < 5.12unaffected6.6.160 to ≤ 6.6.*unaffected6.12.114 to ≤ 6.12.*unaffected6.18.21 to ≤ 6.18.*unaffected6.19.11 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8c24b5179af260a5f36571c992d29aab1f448544 ↗
- https://git.kernel.org/stable/c/7ba09d85f177e9f5f64b881f33dbcb57b2cf23d5 ↗
- https://git.kernel.org/stable/c/0dd98aea1c0c45987fa2dd92f988b0eb1a72c125 ↗
- https://git.kernel.org/stable/c/1cf95fe5dc5471efea947b4c6f8913da6bc7976e ↗
- https://git.kernel.org/stable/c/ef3b06742c8a201d0e83edc9a33a89a4fe3009f8 ↗