Yes, it's probably loop related. And this is probably a very hard to
trigger race.
Below are the suspect programs that triggered this.
This also happened on upstream before:
https://syzkaller.appspot.com/bug?id=77543faae8aa91ae9993d8e0d34df41926b2dc8f
And also on ChromeOS 4.19 and one 4.15 tree. But in all cases the rate
is very low and syzkaller was never able to reproduce this. So I would
assume this is a race with an inconsistency window around few
instructions. But I think it is real because over the past year it
happened 14 times and reports are similar each time and the suspect
programs are similar and there are no red flags in these crashes.
03:37:00 executing program 4:
r0 = syz_open_dev$loop(&(0x7f00000002c0)='/dev/loop#\x00', 0x0, 0x0)
ioctl$LOOP_GET_STATUS64(r0, 0x4c05, &(0x7f0000000140))
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000440)={0x0, {}, 0x0, {},
0x4, 0x0, 0x0, 0x5,
"ac5bf01f087d9b6b2b4ef241994072b427e00bbc53686e5568cea5ee418ce7849ff33833ea3fef415b9d29359a45d3f4bed6f4cc492689ec6c293f5300",
"2ad9fecca7cc61acea23c4f3f3fa50d96f78bb5301efaa332caf8d8b649b433f"})
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff,
<r1=>0xffffffffffffffff})
r2 = dup(r1)
ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200)
07:38:06 executing program 1:
r0 = syz_open_dev$loop(&(0x7f00000000c0)='/dev/loop#\x00', 0x0, 0x0)
memfd_create(0x0, 0x0)
ioctl$LOOP_CHANGE_FD(0xffffffffffffffff, 0x4c00, 0xffffffffffffffff)
ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000200)={0x0, 0x0, 0x0,
0x1000000000000100, 0x0, 0x0, 0x0, 0x0, 0x0,
"f8ca781d5f7e93115c52fa936f014904ccdb29372829d175a4e80426585243b3926d887f686449fdd786f718d8343d49d4273cc82ed2a2ef63524fc21d710476",
"92ef27bcf4634f9065ecbc04c983083f390c3d7bf9ac5c11d0b65e00070e9826557914695667ee4534b1192353f3f801223d563be035c7fb302fe546973e9c78",
"f1a55947f83b5a8a1bd0d7e25a30c2c9d78038891de2ae1c3c5b7be4da2a17da",
[0x40]})
ioctl$LOOP_GET_STATUS(r0, 0x4c03, &(0x7f0000000080))
19:42:21 executing program 1:
r0 = syz_open_dev$loop(&(0x7f0000000180)='/dev/loop#\x00', 0x0, 0x169a01)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000180)={<r1=>0xffffffffffffffff})
r2 = fcntl$dupfd(r1, 0x0, r1)
r3 = open(&(0x7f0000000280)='./file0\x00', 0x0, 0x0)
openat$cgroup_procs(r3, &(0x7f0000000340)='tasks\x00', 0x2, 0x0)
openat$cgroup_int(r3,
&(0x7f00000005c0)='cpuset.memory_spread_page\x00', 0x2, 0x0)
setsockopt$inet_opts(r3, 0x0, 0x4,
&(0x7f00000003c0)="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",
0x1000)
ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200)
r4 = open(&(0x7f0000021000)='./file0\x00', 0x0, 0x0)
fchdir(r4)
ioctl$EVENTFD_SET_IPI(r4, 0x40044503, &(0x7f00000000c0)=0x68)
r5 = getpgid(0x0)
perf_event_open(&(0x7f0000000700)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0,
0x50d, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x902, 0x0, 0x0,
0x7}, r5, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
sendmsg$netlink(r4, &(0x7f00000001c0)={0x0, 0x0,
&(0x7f0000000100)=[{&(0x7f00000013c0)={0x22c, 0x33, 0x20, 0x70bd2b,
0x25dfdbfc, "", [@nested={0xec, 0x34, 0x0, 0x1, [@typed={0x8, 0x8a,
0x0, 0x0, @pid=r5}, @typed={0xde, 0x15, 0x0, 0x0,
@binary="a6d2ebbbbb9becdad285ba9c0c5ab005dad95422f2cec03154470e2211ad5cc8e386ebd56098eeca89bc7fdefa1b266a1352554adae29e885bca321cc2c8bd3521e54859e7824c8db678f95cac4a9fd5339c01d6712c30e537ab14c72ad707f581d037893fe9d60bbcddc490d9cdbf51af91508aa7b61febaa0e29d26286f1fec3d52c9a1d26c76685ef06076c8c98e6702fe8af1a5ea48571432245c6e19a0d53b0d4f7184234135cd601ef3033ac4bee1a7cdd5e202479c8930214c0177dac2822b769cd631aba915443c862343696f9a8338c47a50bd2c63d"}]},
@generic="5a9ac83384db333b59e7893420c038945522563a246c387f29824d0a95643b93ac207c3989b53e296114766777d1080f0c8449a7d6b0447cad",
@typed={0x8, 0x79, 0x0, 0x0, @ipv4=@local},
@generic="4d6341bb6185a8b0775f739eb60141a47685e0f21c54e7ba394a5989e895b6b3e094207bf1fc843b7ce243d9883f937560c688fe33bfecc6f8a9283095a6445efc62c6ae0d11e73ca21e1c86e31b5cf186e55566f3567872cd4572d7f25ea85cc6a7f074b11db56bd843352e057a5f8f425fdd2bf938f15106e5f16b1b4ac1e5285f6f7ee99f1375089274d44a72d64be36ee5be05c24d3f687677c0d5d56d050661af40e65e092e3bc327d36088f7cb54909441faeddab88ed566feb530f145aaee828bef9f1998499dd95fa90c6f80b66122e5c9fdd7a9957ba20e2a52d725c9933b555fa5be28dfbefcff"]},
0x22c}, {&(0x7f0000000000)={0xe8, 0x14, 0x100, 0x70bd2d, 0x25dfdbfe,
"", [@typed={0x8, 0x7f, 0x0, 0x0, @ipv4=@local}, @typed={0xb, 0x92,
0x0, 0x0, @str='self\'.\x00'}, @nested={0xc, 0x4e, 0x0, 0x1,
[@typed={0x8, 0x80, 0x0, 0x0, @ipv4=@local}]},
@generic="666faabf8e9294fdbd9c3b0ce610a09b3aeba10bc07a45acc34db0e4fa32bd90c51f8e64259696650e525b90c2e57d73bc3c8dfeb25e9539c8c33315d6a3c65f8910ff6765ffbad69db4f269809128376724b02e366e9613d7e71f96636ae4fe40688c52ae03bc8ba34b628a8e584f8fff38e1287bb22ad589d3ec79eb6ff853370c8c8890dfa07410b18cd2ecbb800e5eb1ea0e6ed4e379b407b59f1bd7be55ebe5e110e87d825d27f542d8b691c1414f990d239b"]},
0xe8}, {&(0x7f0000001600)={0x16c, 0x16, 0x1, 0x70bd25, 0x25dfdbff, "",
[@typed={0x8, 0x84, 0x0, 0x0, @uid=0xee01},
@generic="66de195d020c1ebb28559ccc2ad3f4c440bfa5cef08aa71899328195a32ce80565c7dc3569c902cab16520143b44751d0fdac2e8514411bfcc94281461ffe50da63acd90e971705a3f0a56221bd2e2f09534180279f2d483c48b31724b5c3271eb63aa7ce7255bebd7ae7477e7f679bcd0794c9bee19bd4c7a17228de709e11d59f689",
@generic="c4e8590103cbb92763e781919008b8ded15e160c22b3a47cdc6fc458943531de7b977b0b722ff3167ca325601c5e92ccf1cd96a813302223e22b7f7674f045c4",
@typed={0x8, 0x7f, 0x0, 0x0, @u32},
@generic="62add7a9605ef7bb2dd35f8ed88929a7fcae03cee488c3967067178d9297b2a142980e6c5266121c15ec8a496e203e198fedaf8b7f664b16e439e50bbfb6a1b314dd8e2b7db61028f9d1cdb4d7594a026c148ccf0a8b7a0207f1f1b74d5c1b04afc84522c2e169047401c2e59d381e6534c3ea8b9c4ffeaf4d8f235e7f3a2c1a0a5bc9fabfb2e026"]},
0x16c}], 0x3, &(0x7f0000000140)}, 0x0)
r6 = open(&(0x7f0000000280)='./file0\x00', 0x0, 0x0)
openat$cgroup_procs(r6, &(0x7f0000000340)='tasks\x00', 0x2, 0x0)
openat$cgroup_int(r6,
&(0x7f00000005c0)='cpuset.memory_spread_page\x00', 0x2, 0x0)
writev(r6, &(0x7f0000000000), 0x0)
ioctl$LOOP_SET_STATUS64(r0, 0x127f, &(0x7f00000002c0)={0xa00, 0x60000,
0x6000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
"b4700382000000a9d205dbb3dff5e4fffe7f3bf7f4b83d58820008806f82f06c6513c4f212000000000000400000008000",
"f11e99c600575a02b8ad7e545b0000000b870100e5ff0008c19881dabb1d650504400000006f00008f699682431467812a70966500",
"02ddff00eb96b1e2ea00000100000104fff11fdc9541e9000100000000271f00"})
19:23:10 executing program 3:
mkdir(&(0x7f0000000340)='./file0\x00', 0x0)
r0 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0,
0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, @perf_config_ext={0x0,
0x8000000fff}, 0x0, 0xffffffff00000000, 0xfffffffc}, 0x0,
0xffffffffffffffff, 0xffffffffffffffff, 0x0)
clone(0x3000000a0160101, 0x0, 0x0, 0x0, 0x0)
mkdir(&(0x7f0000000080)='./file1\x00', 0x160)
ioctl$int_in(r0, 0x0, &(0x7f0000000300)=0x5)
r1 = openat$vcs(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vcs\x00',
0x10002, 0x0)
statx(r1, &(0x7f00000002c0)='./file0\x00', 0x0, 0x10, &(0x7f0000000680))
mount(0x0, &(0x7f0000000200)='./file0\x00',
&(0x7f0000000180)='sysfs\x00', 0x0, 0x0)
poll(0x0, 0x0, 0xffffffff)
rename(&(0x7f0000000100)='./file1\x00', &(0x7f0000000000)='./file0\x00')
r2 = syz_open_dev$sndseq(&(0x7f0000000480)='/dev/snd/seq\x00', 0x0, 0x0)
dup2(r0, r2)
memfd_create(&(0x7f00000000c0)='queue1\x00\x00\x00\x00\x00\x00\x00\x001;\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x06\x00\x00\x00\x00\x00\xcc\xbf}\xdd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb2\x1e\x00',
0x0)
shmctl$SHM_UNLOCK(0x0, 0xc)
syz_open_dev$sndseq(0x0, 0x0, 0x1)
ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(0xffffffffffffffff, 0xc08c5332,
&(0x7f0000000140)={0x0, 0x0, 0x0, 'queue0\x00'})
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = socket$alg(0x26, 0x5, 0x0)
r5 = fcntl$dupfd(r4, 0x0, r3)
ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200)
r6 = open(&(0x7f0000000400)='./file0\x00', 0x40200, 0x81)
sendmsg$NL80211_CMD_GET_MPP(r6,
&(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x40}, 0xc,
&(0x7f00000005c0)={0x0}, 0x1, 0x0, 0x0, 0x10}, 0x44)
r7 = syz_open_dev$loop(&(0x7f0000000200)='/dev/loop#\x00', 0x0, 0x0)
r8 = memfd_create(&(0x7f00000005c0)='\b^\xe1\xe4\x7f\x98\xa9\x87\tmE\xaakU.o@\x00\x00\x00\x00\x00\x00\x00\xdc\x939\xb7\x8e\x9aD0f\x99\xb6\xb3\xe1\xefv\xfd\x17\xc2)\x1fI\xed\x99^\xcf\x00Y\x8f+\xd4\x00\x00\x00\x00s\x87\xb2\xcf\x9d\x02\xcb}\"d\x89\xde(\xdf\x1c\xab\x16\b\x1a\f\xb0\xef}nj\xd5\xb8\xa1-A\xe5\xec#kC\x1aX\xe6r\xc6\xb1qK\x97\x99\v\xaa\n\xfc\xd9r\xe6{\xca\xfb\nIT\xfc\x89okn\xc9\x93\xe9s\x04\xc2\xefq\xa6\xc9\x06=\x1a\xc8\x01^\xa8)LI[\x92\x874oHQ#Y\xd0\xcc\xc5\x10\xe1\x02Z\xeaR\'\x05\x81\x8ch',
0x0)
pwritev(r8, &(0x7f0000000340)=[{&(0x7f0000000140)='!', 0x1}], 0x1, 0x8180d)
ioctl$LOOP_CHANGE_FD(r7, 0x4c00, r8)
ioctl$LOOP_SET_STATUS(r7, 0x4c02, &(0x7f00000001c0)={0x3608, {}, 0x0,
{}, 0x2, 0x0, 0x0, 0x0,
"b04a82706694a7d154c629f75b71a95a8f3b289271c607adb22d4d534f4cf29cff0359ad514d3aa20d7beebc689ab001521f48dc57122f1b38e9e8af694c0d43",
"d66ee438c04045ff21d735bd90f8c3e2c4a016dd0fa49bebf7a08c305bee6fd6"})
set_robust_list(&(0x7f00000003c0)={0x0, 0xfffffffffffffffe,
&(0x7f0000000380)={&(0x7f0000000280)}}, 0x18)
socket$inet_udp(0x2, 0x2, 0x0)
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