cve-2022-48648
Vulnerability from cvelistv5
Published
2024-04-28 13:00
Modified
2024-12-19 08:05
Severity ?
Summary
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]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0a242eb2913a4aa3d6fbdb86559f27628e9466f3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8547c7bfc0617e7184e4da65b9b96681fcfe9998
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3b952168ee1f220ba729fa100fd9d5aa752eb03
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0a242eb2913a4aa3d6fbdb86559f27628e9466f3
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8547c7bfc0617e7184e4da65b9b96681fcfe9998
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b3b952168ee1f220ba729fa100fd9d5aa752eb03
Impacted products
Vendor Product Version
Linux Linux Version: 5.10
Show details on NVD website

To clipboard 

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