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| Started by | Eric Dumazet <edumazet@google.com> |
|---|---|
| First post | 2017-02-12 18:20 +0100 |
| Last post | 2017-02-12 18:20 +0100 |
| Articles | 1 — 1 participant |
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Re: net/llc: BUG in llc_sap_state_process/skb_set_owner_r Eric Dumazet <edumazet@google.com> - 2017-02-12 18:20 +0100
| From | Eric Dumazet <edumazet@google.com> |
|---|---|
| Date | 2017-02-12 18:20 +0100 |
| Subject | Re: net/llc: BUG in llc_sap_state_process/skb_set_owner_r |
| Message-ID | <ta5YC-Bx-21@gated-at.bofh.it> |
On Sun, Feb 12, 2017 at 8:44 AM, Andrey Konovalov <andreyknvl@google.com> wrote: > Hi, > > I've got the following error report while fuzzing the kernel with syzkaller. > > On commit 926af6273fc683cd98cd0ce7bf0d04a02eed6742. > > A reproducer and .config are attached Thanks for the report. llc sets skb->sk without corresponding skb->destructor. This is considered invalid by our current standards. As I added the sanity check in skb_destructor() back in linux-3.12 (!!!), I will send the corresponding LLC fix. ( commit 376c7311bdb6efea3322310333576a04d73fbe4c )
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