Re: [PATCH] net/qrtr: restrict user-controlled length in qrtr_tun_write_iter()

2021-02-12 Thread Eric Dumazet
On 2/2/21 10:20 AM, Sabyrzhan Tasbolatov wrote: > syzbot found WARNING in qrtr_tun_write_iter [1] when write_iter length > exceeds KMALLOC_MAX_SIZE causing order >= MAX_ORDER condition. > > Additionally, there is no check for 0 length write. > > [1] > WARNING: mm/page_alloc.c:5011 > [..] >

Re: [PATCH] net/qrtr: restrict user-controlled length in qrtr_tun_write_iter()

2021-02-03 Thread patchwork-bot+netdevbpf
Hello: This patch was applied to netdev/net.git (refs/heads/master): On Tue, 2 Feb 2021 15:20:59 +0600 you wrote: > syzbot found WARNING in qrtr_tun_write_iter [1] when write_iter length > exceeds KMALLOC_MAX_SIZE causing order >= MAX_ORDER condition. > > Additionally, there is no check for 0

Re: [PATCH] net/qrtr: restrict user-controlled length in qrtr_tun_write_iter()

2021-02-03 Thread Jakub Kicinski
On Tue, 2 Feb 2021 15:20:59 +0600 Sabyrzhan Tasbolatov wrote: > syzbot found WARNING in qrtr_tun_write_iter [1] when write_iter length > exceeds KMALLOC_MAX_SIZE causing order >= MAX_ORDER condition. > > Additionally, there is no check for 0 length write. > > [1] > WARNING: mm/page_alloc.c:5011

[PATCH] net/qrtr: restrict user-controlled length in qrtr_tun_write_iter()

2021-02-02 Thread Sabyrzhan Tasbolatov
syzbot found WARNING in qrtr_tun_write_iter [1] when write_iter length exceeds KMALLOC_MAX_SIZE causing order >= MAX_ORDER condition. Additionally, there is no check for 0 length write. [1] WARNING: mm/page_alloc.c:5011 [..] Call Trace: alloc_pages_current+0x18c/0x2a0 mm/mempolicy.c:2267