UBUNTU-CVE-2024-56756
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
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51 explicit affected versions
11 explicit affected versions
15 explicit affected versions
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62 explicit affected versions
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78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
61 explicit affected versions
14 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/3c2fb1ca8086eb139b2a551358137525ae8e0d7a
- https://git.kernel.org/stable/c/3c2fb1ca8086eb139b2a551358137525ae8e0d7a
- https://git.kernel.org/stable/c/452f9ddd12bebc04cef741e8ba3806bf0e1fd015
- https://git.kernel.org/stable/c/582d9ed999b004fb1d415ecbfa86d4d8df455269
- https://git.kernel.org/stable/c/6d0f599db73b099aa724a12736369c4d4d92849d
- https://git.kernel.org/stable/c/869cf50b9c9d1059f5223f79ef68fc0bc6210095
- https://git.kernel.org/stable/c/ac22240540e0c5230d8c4138e3778420b712716a
- https://git.kernel.org/stable/c/cee3bff51a35cab1c5d842d409a7b11caefe2386
- https://git.kernel.org/stable/c/fb96d5cfa97a7363245b3dd523f475b04296d87b
- https://ubuntu.com/security/CVE-2024-56756
- https://ubuntu.com/security/notices/USN-7276-1
- https://ubuntu.com/security/notices/USN-7277-1
- https://ubuntu.com/security/notices/USN-7310-1
- https://ubuntu.com/security/notices/USN-7387-1
- https://ubuntu.com/security/notices/USN-7387-2
- https://ubuntu.com/security/notices/USN-7387-3
- https://ubuntu.com/security/notices/USN-7388-1
- https://ubuntu.com/security/notices/USN-7389-1
- https://ubuntu.com/security/notices/USN-7390-1
- https://ubuntu.com/security/notices/USN-7391-1
- https://ubuntu.com/security/notices/USN-7392-1
- https://ubuntu.com/security/notices/USN-7392-2
- https://ubuntu.com/security/notices/USN-7392-3
- https://ubuntu.com/security/notices/USN-7392-4
- https://ubuntu.com/security/notices/USN-7393-1
- https://ubuntu.com/security/notices/USN-7401-1
- https://ubuntu.com/security/notices/USN-7407-1
- https://ubuntu.com/security/notices/USN-7413-1
- https://ubuntu.com/security/notices/USN-7421-1
- https://ubuntu.com/security/notices/USN-7449-1
- https://ubuntu.com/security/notices/USN-7449-2
- https://ubuntu.com/security/notices/USN-7450-1
- https://ubuntu.com/security/notices/USN-7451-1
- https://ubuntu.com/security/notices/USN-7452-1
- https://ubuntu.com/security/notices/USN-7453-1
- https://ubuntu.com/security/notices/USN-7458-1
- https://ubuntu.com/security/notices/USN-7459-1
- https://ubuntu.com/security/notices/USN-7459-2
- https://ubuntu.com/security/notices/USN-7463-1
- https://ubuntu.com/security/notices/USN-7468-1
- https://ubuntu.com/security/notices/USN-7523-1
- https://ubuntu.com/security/notices/USN-7524-1
- https://ubuntu.com/security/notices/USN-7539-1
- https://ubuntu.com/security/notices/USN-7540-1
- https://ubuntu.com/security/notices/USN-7988-1
- https://ubuntu.com/security/notices/USN-7988-2
- https://ubuntu.com/security/notices/USN-7988-3
- https://ubuntu.com/security/notices/USN-7988-4
- https://ubuntu.com/security/notices/USN-7988-5
- https://www.cve.org/CVERecord?id=CVE-2024-56756