Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in bpf_skb_get_nlattr_nest bpf net | syz | 38 | 1422d | 1423d | 0/26 | closed as invalid on 2020/05/28 10:23 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in bpf_skb_get_nlattr_nest bpf net | syz | 38 | 1422d | 1423d | 0/26 | closed as invalid on 2020/05/28 10:23 |
===================================================== BUG: KMSAN: uninit-value in ____bpf_skb_get_nlattr_nest net/core/filter.c:164 [inline] BUG: KMSAN: uninit-value in bpf_skb_get_nlattr_nest+0x14c/0x2f0 net/core/filter.c:154 CPU: 0 PID: 8434 Comm: syz-executor702 Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1df/0x240 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215 ____bpf_skb_get_nlattr_nest net/core/filter.c:164 [inline] bpf_skb_get_nlattr_nest+0x14c/0x2f0 net/core/filter.c:154 ___bpf_prog_run+0x214d/0x97a0 kernel/bpf/core.c:1516 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681 bpf_dispatcher_nop_func include/linux/bpf.h:556 [inline] __bpf_prog_run_save_cb include/linux/filter.h:691 [inline] bpf_prog_run_save_cb include/linux/filter.h:705 [inline] sk_filter_trim_cap+0x42a/0xcc0 net/core/filter.c:119 sk_filter include/linux/filter.h:831 [inline] unix_dgram_sendmsg+0x1987/0x3c30 net/unix/af_unix.c:1710 unix_seqpacket_sendmsg+0x26c/0x2e0 net/unix/af_unix.c:2063 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x1370/0x1400 net/socket.c:2352 ___sys_sendmsg net/socket.c:2406 [inline] __sys_sendmsg+0x623/0x750 net/socket.c:2439 __do_sys_sendmsg net/socket.c:2448 [inline] __se_sys_sendmsg+0x97/0xb0 net/socket.c:2446 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2446 do_syscall_64+0xb0/0x150 arch/x86/entry/common.c:386 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x440349 Code: Bad RIP value. RSP: 002b:00007ffe462dc5f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440349 RDX: 0000000000000000 RSI: 0000000020000480 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000401b50 R13: 0000000000401be0 R14: 0000000000000000 R15: 0000000000000000 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:165 ___bpf_prog_run+0x6cbe/0x97a0 kernel/bpf/core.c:1391 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681 bpf_dispatcher_nop_func include/linux/bpf.h:556 [inline] __bpf_prog_run_save_cb include/linux/filter.h:691 [inline] bpf_prog_run_save_cb include/linux/filter.h:705 [inline] sk_filter_trim_cap+0x42a/0xcc0 net/core/filter.c:119 sk_filter include/linux/filter.h:831 [inline] unix_dgram_sendmsg+0x1987/0x3c30 net/unix/af_unix.c:1710 unix_seqpacket_sendmsg+0x26c/0x2e0 net/unix/af_unix.c:2063 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x1370/0x1400 net/socket.c:2352 ___sys_sendmsg net/socket.c:2406 [inline] __sys_sendmsg+0x623/0x750 net/socket.c:2439 __do_sys_sendmsg net/socket.c:2448 [inline] __se_sys_sendmsg+0x97/0xb0 net/socket.c:2446 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2446 do_syscall_64+0xb0/0x150 arch/x86/entry/common.c:386 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:165 ___bpf_prog_run+0x6c64/0x97a0 kernel/bpf/core.c:1391 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681 bpf_dispatcher_nop_func include/linux/bpf.h:556 [inline] __bpf_prog_run_save_cb include/linux/filter.h:691 [inline] bpf_prog_run_save_cb include/linux/filter.h:705 [inline] sk_filter_trim_cap+0x42a/0xcc0 net/core/filter.c:119 sk_filter include/linux/filter.h:831 [inline] unix_dgram_sendmsg+0x1987/0x3c30 net/unix/af_unix.c:1710 unix_seqpacket_sendmsg+0x26c/0x2e0 net/unix/af_unix.c:2063 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x1370/0x1400 net/socket.c:2352 ___sys_sendmsg net/socket.c:2406 [inline] __sys_sendmsg+0x623/0x750 net/socket.c:2439 __do_sys_sendmsg net/socket.c:2448 [inline] __se_sys_sendmsg+0x97/0xb0 net/socket.c:2446 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2446 do_syscall_64+0xb0/0x150 arch/x86/entry/common.c:386 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Local variable ----regs@__bpf_prog_run32 created at: __bpf_prog_run32+0x87/0x170 kernel/bpf/core.c:1681 __bpf_prog_run32+0x87/0x170 kernel/bpf/core.c:1681 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/07/19 05:15 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | syz | C | ci-upstream-kmsan-gce | |||
2020/07/20 08:47 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/20 08:20 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/20 08:14 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/19 20:44 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/19 05:07 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/19 05:07 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 23:11 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 05:09 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 03:24 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 01:15 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/17 23:25 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/17 23:11 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/19 14:03 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/19 05:01 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/18 04:32 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/18 02:29 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/18 01:38 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/17 19:55 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 |