A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering rhashtable_init() failures, aka CID-34b3be18a04e. NOTE: This has been disputed as not a vulnerability because "rhashtable_init() can only fail if it is passed invalid values in the second parameter's struct, but when invoked from sdma_init() that is a pointer to a static const struct, so an attacker could only trigger failure if they could corrupt kernel memory (in which case a small memory leak is not a significant problem).
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
| Link | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9 | release notes vendor advisory |
| https://github.com/torvalds/linux/commit/34b3be18a04ecdc610aae4c48e5d1b799d8689f6 | third party advisory patch |
| https://usn.ubuntu.com/4208-1/ | third party advisory vendor advisory |
| https://usn.ubuntu.com/4210-1/ | third party advisory vendor advisory |
| https://security.netapp.com/advisory/ntap-20191205-0001/ | third party advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html | vendor advisory mailing list third party advisory |
| https://usn.ubuntu.com/4226-1/ | third party advisory vendor advisory |