Re: [PATCH v2 net] fou, fou6: do not assume linear skbs

2019-01-15 Thread David Miller
From: Eric Dumazet Date: Fri, 11 Jan 2019 06:27:35 -0800 > Both gue_err() and gue6_err() incorrectly assume > linear skbs. Fix them to use pskb_may_pull(). ... > Fixes: b8a51b38e4d4 ("fou, fou6: ICMP error handlers for FoU and GUE") > Signed-off-by: Eric Dumazet > Reported-by: syzbot Applied.

[PATCH v2 net] fou, fou6: do not assume linear skbs

2019-01-11 Thread Eric Dumazet
Both gue_err() and gue6_err() incorrectly assume linear skbs. Fix them to use pskb_may_pull(). BUG: KMSAN: uninit-value in gue6_err+0x475/0xc40 net/ipv6/fou6.c:101 CPU: 0 PID: 18083 Comm: syz-executor1 Not tainted 5.0.0-rc1+ #7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIO

Re: [PATCH v2 net] fou, fou6: do not assume linear skbs

2019-01-11 Thread Stefano Brivio
On Fri, 11 Jan 2019 06:27:35 -0800 Eric Dumazet wrote: > Both gue_err() and gue6_err() incorrectly assume > linear skbs. Fix them to use pskb_may_pull(). > > BUG: KMSAN: uninit-value in gue6_err+0x475/0xc40 net/ipv6/fou6.c:101 > CPU: 0 PID: 18083 Comm: syz-executor1 Not tainted 5.0.0-rc1+ #7 > >