Re: [PATCH] net: rose: use pskb_may_pull() in CLEAR_REQUEST length check
Ashutosh Desai <[email protected]> Tue, 21 Apr 2026 02:27:12 +0000
| Newsgroups | gmane.linux.hams,gmane.linux.network,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
On Mon, Apr 20, 2026 at 15:04:30 +0200, Andrew Lunn wrote: > Did you review all the other comparisons on skb->len in rose? > Do these need the same fix? Are there other places non linear buffers > should be considered? Reviewed all rose files. Thanks for pointing those out - yes, the two spots in rose_route.c and rose_loopback.c have the same issue and need the same fix. While reviewing I also noticed rose_link.c: rose_link_rx_restart() accesses skb->data[3] in the ROSE_RESTART_REQUEST case and skb->data[3]/skb->data+4 in the ROSE_DIAGNOSTIC case, with only a ROSE_MIN_LEN (3 bytes) guard upstream in the caller. Same linearity concern. Is it recommended to send a v2 covering all three files?