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Message-ID: <00000000000078c94d061dc3d97c@google.com> Date: Sun, 21 Jul 2024 08:47:44 -0700 From: syzbot <syzbot+707d98c8649695eaf329@...kaller.appspotmail.com> To: linux-kernel@...r.kernel.org Subject: Re: [syzbot] Re: [syzbot] [bpf?] [net?] KASAN: slab-use-after-free Read in bq_xmit_all For archival purposes, forwarding an incoming command email to linux-kernel@...r.kernel.org. *** Subject: Re: [syzbot] [bpf?] [net?] KASAN: slab-use-after-free Read in bq_xmit_all Author: aha310510@...il.com #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git upstream --- include/linux/filter.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/filter.h b/include/linux/filter.h index b6672ff61407..22691015d175 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -842,15 +842,15 @@ static inline void bpf_net_ctx_get_all_used_flush_lists(struct list_head **lh_ma if (!IS_ENABLED(CONFIG_BPF_SYSCALL)) return; - lh = &bpf_net_ctx->dev_map_flush_list; + lh = this_cpu_ptr(&bpf_net_ctx->dev_map_flush_list); if (kern_flags & BPF_RI_F_DEV_MAP_INIT && !list_empty(lh)) *lh_dev = lh; - lh = &bpf_net_ctx->cpu_map_flush_list; + lh = this_cpu_ptr(&bpf_net_ctx->cpu_map_flush_list); if (kern_flags & BPF_RI_F_CPU_MAP_INIT && !list_empty(lh)) *lh_map = lh; - lh = &bpf_net_ctx->xskmap_map_flush_list; + lh = this_cpu_ptr(&bpf_net_ctx->xskmap_map_flush_list); if (IS_ENABLED(CONFIG_XDP_SOCKETS) && kern_flags & BPF_RI_F_XSK_MAP_INIT && !list_empty(lh)) *lh_xsk = lh; --
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