Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in bpf_skb_load_helper_16 (2) bpf net | C | 27 | 1368d | 1371d | 0/26 | closed as invalid on 2020/07/22 14:22 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in bpf_skb_load_helper_16 (2) bpf net | C | 27 | 1368d | 1371d | 0/26 | closed as invalid on 2020/07/22 14:22 |
===================================================== BUG: KMSAN: uninit-value in ____bpf_skb_load_helper_16 net/core/filter.c:211 [inline] BUG: KMSAN: uninit-value in bpf_skb_load_helper_16+0xd9/0x2b0 net/core/filter.c:205 CPU: 1 PID: 8809 Comm: syz-executor988 Not tainted 5.7.0-rc4-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+0x1c9/0x220 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_load_helper_16 net/core/filter.c:211 [inline] bpf_skb_load_helper_16+0xd9/0x2b0 net/core/filter.c:205 ___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:545 [inline] __bpf_prog_run_save_cb include/linux/filter.h:693 [inline] bpf_prog_run_save_cb include/linux/filter.h:707 [inline] sk_filter_trim_cap+0x42a/0xcc0 net/core/filter.c:119 sk_filter include/linux/filter.h:833 [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] kernel_sendmsg+0x433/0x440 net/socket.c:692 sock_no_sendpage+0x235/0x300 net/core/sock.c:2763 kernel_sendpage net/socket.c:3808 [inline] sock_sendpage+0x1e1/0x2c0 net/socket.c:950 pipe_to_sendpage+0x38c/0x4c0 fs/splice.c:458 splice_from_pipe_feed fs/splice.c:512 [inline] __splice_from_pipe+0x539/0xed0 fs/splice.c:636 splice_from_pipe fs/splice.c:671 [inline] generic_splice_sendpage+0x1d5/0x2d0 fs/splice.c:844 do_splice_from fs/splice.c:863 [inline] do_splice+0x1eae/0x2ec0 fs/splice.c:1170 __do_sys_splice fs/splice.c:1447 [inline] __se_sys_splice+0x426/0x520 fs/splice.c:1427 __x64_sys_splice+0x6e/0x90 fs/splice.c:1427 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4402b9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff817199e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402b9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 000000000004ffe0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b40 R13: 0000000000401bd0 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:545 [inline] __bpf_prog_run_save_cb include/linux/filter.h:693 [inline] bpf_prog_run_save_cb include/linux/filter.h:707 [inline] sk_filter_trim_cap+0x42a/0xcc0 net/core/filter.c:119 sk_filter include/linux/filter.h:833 [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] kernel_sendmsg+0x433/0x440 net/socket.c:692 sock_no_sendpage+0x235/0x300 net/core/sock.c:2763 kernel_sendpage net/socket.c:3808 [inline] sock_sendpage+0x1e1/0x2c0 net/socket.c:950 pipe_to_sendpage+0x38c/0x4c0 fs/splice.c:458 splice_from_pipe_feed fs/splice.c:512 [inline] __splice_from_pipe+0x539/0xed0 fs/splice.c:636 splice_from_pipe fs/splice.c:671 [inline] generic_splice_sendpage+0x1d5/0x2d0 fs/splice.c:844 do_splice_from fs/splice.c:863 [inline] do_splice+0x1eae/0x2ec0 fs/splice.c:1170 __do_sys_splice fs/splice.c:1447 [inline] __se_sys_splice+0x426/0x520 fs/splice.c:1427 __x64_sys_splice+0x6e/0x90 fs/splice.c:1427 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:297 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:545 [inline] __bpf_prog_run_save_cb include/linux/filter.h:693 [inline] bpf_prog_run_save_cb include/linux/filter.h:707 [inline] sk_filter_trim_cap+0x42a/0xcc0 net/core/filter.c:119 sk_filter include/linux/filter.h:833 [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] kernel_sendmsg+0x433/0x440 net/socket.c:692 sock_no_sendpage+0x235/0x300 net/core/sock.c:2763 kernel_sendpage net/socket.c:3808 [inline] sock_sendpage+0x1e1/0x2c0 net/socket.c:950 pipe_to_sendpage+0x38c/0x4c0 fs/splice.c:458 splice_from_pipe_feed fs/splice.c:512 [inline] __splice_from_pipe+0x539/0xed0 fs/splice.c:636 splice_from_pipe fs/splice.c:671 [inline] generic_splice_sendpage+0x1d5/0x2d0 fs/splice.c:844 do_splice_from fs/splice.c:863 [inline] do_splice+0x1eae/0x2ec0 fs/splice.c:1170 __do_sys_splice fs/splice.c:1447 [inline] __se_sys_splice+0x426/0x520 fs/splice.c:1427 __x64_sys_splice+0x6e/0x90 fs/splice.c:1427 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:297 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/05/27 04:58 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | syz | C | ci-upstream-kmsan-gce | |||
2020/05/27 08:50 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 23:03 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 22:17 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 22:13 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 22:10 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 21:48 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 21:25 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 21:17 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 21:08 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 20:33 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 20:24 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 20:13 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/26 19:41 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/27 22:10 | https://github.com/google/kmsan.git master | 8b611d82b66b | ec153193 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/27 14:59 | https://github.com/google/kmsan.git master | 8b611d82b66b | ec153193 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/27 13:18 | https://github.com/google/kmsan.git master | 8b611d82b66b | ec153193 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/27 09:02 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/27 04:13 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/26 23:01 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/26 21:04 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/26 20:40 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/26 20:05 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/05/26 19:26 | https://github.com/google/kmsan.git master | 94bc4cd0c2f0 | 9072c126 | .config | console log | report | ci-upstream-kmsan-gce-386 |