audit: type=1804 audit(1603285723.356:49): pid=13055 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir274785606/syzkaller.0AZRaW/92/file0" dev="sda1" ino=16029 res=1 ================================================================================ UBSAN: Undefined behaviour in ./include/linux/log2.h:61:13 shift exponent 64 is too large for 64-bit type 'long unsigned int' CPU: 0 PID: 13057 Comm: syz-executor.4 Not tainted 4.19.152-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+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 __roundup_pow_of_two include/linux/log2.h:61 [inline] snd_pcm_oss_period_size sound/core/oss/pcm_oss.c:747 [inline] snd_pcm_oss_change_params_locked.cold+0x85/0x11a sound/core/oss/pcm_oss.c:943 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1102 [inline] snd_pcm_oss_get_active_substream+0x164/0x1c0 sound/core/oss/pcm_oss.c:1119 snd_pcm_oss_get_channels sound/core/oss/pcm_oss.c:1806 [inline] snd_pcm_oss_set_channels+0x244/0x380 sound/core/oss/pcm_oss.c:1798 snd_pcm_oss_ioctl+0x196f/0x3450 sound/core/oss/pcm_oss.c:2644 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45de59 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1f65080c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000015f40 RCX: 000000000045de59 RDX: 0000000020000200 RSI: 00000000c0045006 RDI: 0000000000000003 RBP: 000000000118c008 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4 R13: 00007ffcea66830f R14: 00007f1f650819c0 R15: 000000000118bfd4 ================================================================================ audit: type=1800 audit(1603285723.846:50): pid=13076 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=16034 res=0 audit: type=1800 audit(1603285723.886:51): pid=13080 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=16036 res=0 audit: type=1804 audit(1603285724.477:52): pid=13080 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir127430313/syzkaller.etBL6U/104/file0" dev="sda1" ino=16036 res=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. kauditd_printk_skb: 7 callbacks suppressed audit: type=1800 audit(1603285726.187:60): pid=13169 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=16022 res=0 NFS: bad mount option value specified: vCuS:Sm#]Ny?qɪwMk:wݯM;MLXjh/86.֏s3Dh\>f? g$bzpsg)bU$X^ NFS: bad mount option value specified: vCuS:Sm#]Ny?qɪwMk:wݯM;MLXjh/86.֏s3Dh\>f? g$bzpsg)bU$X^ audit: type=1804 audit(1603285726.437:61): pid=13169 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir274785606/syzkaller.0AZRaW/94/file0" dev="sda1" ino=16022 res=1 audit: type=1800 audit(1603285728.127:62): pid=13197 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=16061 res=0 audit: type=1800 audit(1603285728.127:63): pid=13198 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=16064 res=0 audit: type=1804 audit(1603285728.867:64): pid=13197 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir861274652/syzkaller.CNduak/101/file0" dev="sda1" ino=16061 res=1 audit: type=1804 audit(1603285728.867:65): pid=13198 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir127430313/syzkaller.etBL6U/106/file0" dev="sda1" ino=16064 res=1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.