CVE-2022-48648
- Source
- https://cve.org/CVERecord?id=CVE-2022-48648
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48648.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-48648
- Downstream
- Related
- Published
- 2024-04-28T13:00:28Z
- Modified
- 2026-08-12T03:30:51Z
- Summary
- sfc: fix null pointer dereference in efx_hard_start_xmit
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
sfc: fix null pointer dereference in efx_hard_start_xmit
Trying to get the channel from the tx_queue variable here is wrong because we can only be here if tx_queue is NULL, so we shouldn't dereference it. As the above comment in the code says, this is very unlikely to happen, but it's wrong anyway so let's fix it.
I hit this issue because of a different bug that caused tx_queue to be NULL. If that happens, this is the error message that we get here: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [...] RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48648.json" }- References
-
- https://git.kernel.org/stable/c/0a242eb2913a4aa3d6fbdb86559f27628e9466f3
- https://git.kernel.org/stable/c/8547c7bfc0617e7184e4da65b9b96681fcfe9998
- https://git.kernel.org/stable/c/b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7
- https://git.kernel.org/stable/c/b3b952168ee1f220ba729fa100fd9d5aa752eb03
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48648.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-48648
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced12804793b17c0e19115a90d98f2f3df0cb79e233Fixedb3b41d4d95d3822b2e459ecbc80d030ea6aec5e7Fixed8547c7bfc0617e7184e4da65b9b96681fcfe9998Fixedb3b952168ee1f220ba729fa100fd9d5aa752eb03Fixed0a242eb2913a4aa3d6fbdb86559f27628e9466f3