Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in sk_filter_trim_cap bpf net | syz | 2 | 1421d | 1421d | 0/26 | closed as invalid on 2020/05/28 10:53 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in sk_filter_trim_cap bpf net | syz | 2 | 1421d | 1421d | 0/26 | closed as invalid on 2020/05/28 10:53 |
===================================================== BUG: KMSAN: uninit-value in sk_filter_trim_cap+0x828/0xcc0 net/core/filter.c:121 CPU: 0 PID: 8472 Comm: syz-executor467 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 sk_filter_trim_cap+0x828/0xcc0 net/core/filter.c:121 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_sendmmsg+0x60e/0xd80 net/socket.c:2496 __do_sys_sendmmsg net/socket.c:2525 [inline] __se_sys_sendmmsg+0xbd/0xe0 net/socket.c:2522 __x64_sys_sendmmsg+0x56/0x70 net/socket.c:2522 do_syscall_64+0xb0/0x150 arch/x86/entry/common.c:386 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4402e9 Code: Bad RIP value. RSP: 002b:00007ffe1ebab908 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402e9 RDX: 03fffffffffffe36 RSI: 0000000020001e00 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401af0 R13: 0000000000401b80 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+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_sendmmsg+0x60e/0xd80 net/socket.c:2496 __do_sys_sendmmsg net/socket.c:2525 [inline] __se_sys_sendmmsg+0xbd/0xe0 net/socket.c:2522 __x64_sys_sendmmsg+0x56/0x70 net/socket.c:2522 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 21:16 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | syz | C | ci-upstream-kmsan-gce | |||
2020/07/19 23:28 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | syz | C | ci-upstream-kmsan-gce-386 | |||
2020/07/18 12:21 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 06:58 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/17 19:27 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/17 19:22 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 09:32 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 |