linux: In the Linux kernel, the following vulnerability has been resolved: sfc: fix null pointer dereference in efx_hard_st...
CVE-2022-48648 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48648, released April 28, 2024. It is not reported as exploited. Patch Radar priority: Routine.
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]
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.0.2-1 | DEBIAN-CVE-2022-48648 | Apr 28, 2024 |
| linux · Debian 13.5 (trixie) | 6.0.2-1 | DEBIAN-CVE-2022-48648 | Apr 28, 2024 |
| linux · Debian 14 | 6.0.2-1 | DEBIAN-CVE-2022-48648 | Apr 28, 2024 |
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