executor: bpf tracepoints kill runner process

[dvyukov]

The following log leads to runner process receiving signal 33 and dying silently.
Replying these programs one-by-one did not reproduce it (maybe I haven't tried enough).
It seems that the programs set some bad watchpoints. Not sure how we can protect from it.

318.600665ms ago: executing program 3 (id=15):
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000640)=@base={0x16, 0x0, 0x4, 0x1, 0x0, 0x1}, 0x48)
bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000a40)={0x3, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000000000000000000000000000018110000", @ANYRES32=r0, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000002000000b704000000000000850000005700000095"], 0x0}, 0x90)
ioctl$SNDRV_TIMER_IOCTL_SELECT(0xffffffffffffffff, 0x40345410, &(0x7f0000000100))
ioctl$SNDRV_TIMER_IOCTL_START(0xffffffffffffffff, 0x40045402)
r1 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000240)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000340)={&(0x7f0000000300)='ext4_ext_remove_space_done\x00', r1}, 0x10)
r2 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000440)=ANY=[], &(0x7f0000000240)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000040)={&(0x7f0000000000)='ext4_ext_remove_space_done\x00', r2}, 0x10)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000040)={&(0x7f0000000000)='ext4_da_write_pages\x00'}, 0x10)
r3 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='cpuset.memory_pressure_enabled\x00', 0x275a, 0x0)
write$cgroup_int(r3, &(0x7f0000000100), 0x1001)
ioctl$SIOCSIFHWADDR(r3, 0x4030582b, &(0x7f0000000280)={'lo\x00', @link_local={0x1, 0x80, 0xc2, 0xc}})

225.585853ms ago: executing program 3 (id=16):
r0 = socket$inet6_dccp(0xa, 0x6, 0x0)
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='memory.events\x00', 0x275a, 0x0)
mmap$IORING_OFF_SQ_RING(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x0, 0x12, r1, 0x0)
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='memory.events\x00', 0x7a05, 0x1700)
r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='memory.events\x00', 0x275a, 0x0)
writev(r2, &(0x7f0000000300)=[{&(0x7f0000000200)="a3", 0x1}], 0x1)
perf_event_open(&(0x7f0000000000)={0x8, 0x80, 0x0, 0x0, 0x0, 0x0, 0x82, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000080)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600002, 0x15)
close_range(r0, 0xffffffffffffffff, 0x0)

89.557847ms ago: executing program 2 (id=17):
capset(&(0x7f0000000ac0)={0x20071026}, &(0x7f0000000b00))
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x1, 0xe, &(0x7f0000000300)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x0, 0x10, &(0x7f0000000080), 0xfffffffffffffdbb}, 0x48)

89.328544ms ago: executing program 2 (id=18):
r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000280)={0x18, 0x5, &(0x7f0000000040)=ANY=[@ANYBLOB="180100002100000000000000000000008500000075000000a50000002300000095"], &(0x7f00000000c0)='GPL\x00'}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f00000001c0)='mmap_lock_acquire_returned\x00', r0}, 0x10)
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='freezer.self_freezing\x00', 0x275a, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x28011, r1, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x200)

# ./syz-execprog -repeat=0 -procs=8  log
2024/06/21 12:48:59 parsed 4 programs
2024/06/21 12:49:02 executed programs: 0
2024/06/21 12:49:07 executed programs: 144
2024/06/21 12:49:12 executed programs: 456
executor process exited: signal: signal 33