61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:23 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:23 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:23 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  716.671567][T18012] delete_channel: no stack
04:22:24 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:24 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  716.931323][T18029] delete_channel: no stack
04:22:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:24 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:24 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  717.195409][T18047] delete_channel: no stack
04:22:24 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:24 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:24 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  717.408234][T18066] delete_channel: no stack
04:22:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:24 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:25 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  717.754990][T18085] delete_channel: no stack
04:22:25 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  718.015670][T18108] delete_channel: no stack
04:22:25 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  718.233527][T18120] delete_channel: no stack
04:22:25 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:25 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:25 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  718.647534][T18145] delete_channel: no stack
04:22:26 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:26 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:26 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:26 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  719.004149][T18171] delete_channel: no stack
04:22:26 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  719.237805][T18186] delete_channel: no stack
04:22:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:26 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:26 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  719.522797][T18209] delete_channel: no stack
04:22:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:26 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:26 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:27 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  719.786498][T18224] delete_channel: no stack
04:22:27 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:27 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:27 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:27 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:27 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:27 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  720.065495][T18236] delete_channel: no stack
04:22:27 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:27 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:27 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:27 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:27 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:27 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  720.370720][T18262] delete_channel: no stack
04:22:27 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:27 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:27 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:27 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:27 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  720.672541][T18279] delete_channel: no stack
04:22:28 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:28 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:28 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:28 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:28 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  720.958000][T18296] delete_channel: no stack
04:22:28 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:28 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:28 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:28 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:28 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  721.247521][T18319] delete_channel: no stack
04:22:28 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:28 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:28 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:28 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:28 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  721.665592][T18341] delete_channel: no stack
04:22:29 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:29 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:29 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  722.052290][T18366] delete_channel: no stack
04:22:29 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:29 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:29 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  722.331002][T18382] delete_channel: no stack
04:22:29 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:29 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:29 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:29 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:30 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  722.632114][T18400] delete_channel: no stack
04:22:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:30 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:30 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  722.938846][T18422] delete_channel: no stack
04:22:30 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:30 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:30 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:30 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  723.243647][T18442] delete_channel: no stack
04:22:30 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:30 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:30 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  723.550791][T18462] delete_channel: no stack
04:22:30 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:31 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  723.763746][T18480] delete_channel: no stack
04:22:31 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:31 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:31 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

[  724.002063][T18497] delete_channel: no stack
04:22:31 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  724.166281][T18508] delete_channel: no stack
04:22:31 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:31 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:31 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  724.457278][T18522] delete_channel: no stack
04:22:31 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:31 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:32 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  724.805103][T18551] delete_channel: no stack
04:22:32 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:32 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:32 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  725.108387][T18575] delete_channel: no stack
04:22:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:32 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  725.436474][T18600] delete_channel: no stack
04:22:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:32 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:32 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:33 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  725.810411][T18621] delete_channel: no stack
04:22:33 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:33 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:33 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  726.084378][T18644] delete_channel: no stack
04:22:33 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:33 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:33 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  726.370721][T18666] delete_channel: no stack
04:22:33 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:33 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  726.646772][T18684] delete_channel: no stack
04:22:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:34 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  726.939291][T18700] delete_channel: no stack
04:22:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:34 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:34 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  727.137925][T18719] delete_channel: no stack
04:22:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:34 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  727.428873][T18739] delete_channel: no stack
04:22:34 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:34 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  727.690269][T18759] delete_channel: no stack
04:22:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:35 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  727.921971][T18776] delete_channel: no stack
04:22:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:35 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  728.195273][T18794] delete_channel: no stack
04:22:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:35 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:35 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  728.488895][T18810] delete_channel: no stack
04:22:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:36 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:36 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  728.787519][T18839] delete_channel: no stack
04:22:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:36 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  729.044330][T18858] delete_channel: no stack
04:22:36 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:36 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  729.246362][T18872] delete_channel: no stack
04:22:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:36 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:36 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:36 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  729.516619][T18892] delete_channel: no stack
04:22:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:37 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:37 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  729.835259][T18909] delete_channel: no stack
04:22:37 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:37 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  730.076965][T18932] delete_channel: no stack
04:22:37 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:37 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:37 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  730.434146][T18957] delete_channel: no stack
04:22:37 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  730.745256][T18979] delete_channel: no stack
04:22:38 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:38 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:38 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  731.085247][T19001] delete_channel: no stack
04:22:38 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:38 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  731.352112][T19016] delete_channel: no stack
04:22:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:38 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:39 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  731.648029][T19036] delete_channel: no stack
04:22:39 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:39 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  731.924323][T19057] delete_channel: no stack
04:22:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:39 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:39 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:39 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  732.317084][T19082] delete_channel: no stack
04:22:39 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:39 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:39 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  732.531641][T19099] delete_channel: no stack
04:22:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:40 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  732.766060][T19120] delete_channel: no stack
04:22:40 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:40 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:40 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  733.032225][T19135] delete_channel: no stack
04:22:40 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  733.262940][T19158] delete_channel: no stack
04:22:40 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:40 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:40 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  733.579625][T19185] delete_channel: no stack
04:22:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:41 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:41 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:41 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:41 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  733.841246][T19201] delete_channel: no stack
04:22:41 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:41 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:41 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  734.026161][T19218] delete_channel: no stack
04:22:41 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:41 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:41 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  734.259945][T19237] delete_channel: no stack
04:22:41 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:41 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:41 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:41 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  734.554412][T19255] delete_channel: no stack
04:22:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:42 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  734.876987][T19279] delete_channel: no stack
04:22:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:42 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  735.115796][T19295] delete_channel: no stack
04:22:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  735.406279][T19317] delete_channel: no stack
04:22:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:43 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  735.711886][T19341] delete_channel: no stack
04:22:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:43 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:43 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  735.965322][T19361] delete_channel: no stack
04:22:43 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:43 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  736.203338][T19380] delete_channel: no stack
04:22:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:43 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:43 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  736.465888][T19400] delete_channel: no stack
04:22:43 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:43 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:44 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:44 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  736.749110][T19422] delete_channel: no stack
04:22:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:44 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:44 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  737.000389][T19441] delete_channel: no stack
04:22:44 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

[  737.196934][T19455] delete_channel: no stack
04:22:44 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:44 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  737.568468][T19480] delete_channel: no stack
04:22:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:45 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:45 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  737.827039][T19507] delete_channel: no stack
04:22:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:45 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:45 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  738.190347][T19527] delete_channel: no stack
04:22:45 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  738.402196][T19546] delete_channel: no stack
04:22:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:45 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:46 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  738.681384][T19561] delete_channel: no stack
04:22:46 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:46 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:46 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  738.960824][T19584] delete_channel: no stack
04:22:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:46 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  739.203992][T19602] delete_channel: no stack
04:22:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:46 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:46 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  739.425510][T19616] delete_channel: no stack
04:22:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  739.622766][T19636] delete_channel: no stack
04:22:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:47 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:47 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  739.873953][T19654] delete_channel: no stack
04:22:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:47 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  740.076149][T19671] delete_channel: no stack
04:22:47 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:47 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:47 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  740.345479][T19690] delete_channel: no stack
04:22:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:47 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  740.626178][T19708] delete_channel: no stack
04:22:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  740.828148][T19726] delete_channel: no stack
04:22:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:48 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  741.139246][T19752] delete_channel: no stack
04:22:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:48 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:48 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  741.434676][T19768] delete_channel: no stack
04:22:48 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  741.704843][T19788] delete_channel: no stack
04:22:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:49 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:49 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:49 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  742.008075][T19813] delete_channel: no stack
04:22:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:49 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:49 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  742.232220][T19827] delete_channel: no stack
04:22:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:49 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:49 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:49 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  742.546190][T19848] delete_channel: no stack
04:22:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:50 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:50 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  742.779594][T19866] delete_channel: no stack
04:22:50 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  743.004073][T19882] delete_channel: no stack
04:22:50 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:50 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  743.242638][T19902] delete_channel: no stack
04:22:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:50 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:50 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  743.459753][T19913] delete_channel: no stack
04:22:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:51 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  743.761955][T19937] delete_channel: no stack
04:22:51 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  744.033411][T19954] delete_channel: no stack
04:22:51 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:51 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  744.331641][T19980] delete_channel: no stack
04:22:51 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:51 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  744.618650][T19994] delete_channel: no stack
04:22:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:52 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:52 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  744.868449][T20021] delete_channel: no stack
04:22:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:52 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  745.163440][T20044] delete_channel: no stack
04:22:52 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:52 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:52 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  745.480867][T20059] delete_channel: no stack
04:22:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:52 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:53 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  745.784319][T20086] delete_channel: no stack
04:22:53 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:53 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:53 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  746.078900][T20107] delete_channel: no stack
04:22:53 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:53 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  746.280215][T20124] delete_channel: no stack
04:22:53 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:53 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:53 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:53 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  746.578668][T20143] delete_channel: no stack
04:22:54 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:54 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:54 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  746.818081][T20167] delete_channel: no stack
04:22:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:54 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:54 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  747.108356][T20184] delete_channel: no stack
04:22:54 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:54 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  747.347268][T20204] delete_channel: no stack
04:22:54 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:54 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  747.679735][T20224] delete_channel: no stack
04:22:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:55 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:55 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  747.934807][T20245] delete_channel: no stack
04:22:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:55 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  748.186999][T20263] delete_channel: no stack
04:22:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  748.446477][T20286] delete_channel: no stack
04:22:55 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:55 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:56 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  748.679509][T20301] delete_channel: no stack
04:22:56 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:56 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:56 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:56 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:56 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  749.048125][T20324] delete_channel: no stack
04:22:56 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:56 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  749.311690][T20344] delete_channel: no stack
04:22:56 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:56 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:56 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:56 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  749.577691][T20362] delete_channel: no stack
04:22:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:57 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  749.833655][T20386] delete_channel: no stack
04:22:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:57 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:57 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  750.164561][T20403] delete_channel: no stack
04:22:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  750.422176][T20422] delete_channel: no stack
04:22:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:57 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  750.634746][T20437] delete_channel: no stack
04:22:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:58 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  750.886529][T20454] delete_channel: no stack
04:22:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:58 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  751.169804][T20480] delete_channel: no stack
04:22:58 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  751.441795][T20498] delete_channel: no stack
04:22:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:58 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  751.621691][T20515] delete_channel: no stack
04:22:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:59 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  751.894179][T20532] delete_channel: no stack
04:22:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:59 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  752.123554][T20549] delete_channel: no stack
04:22:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:22:59 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:22:59 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  752.432257][T20570] delete_channel: no stack
04:22:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:22:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:22:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  752.634573][T20587] delete_channel: no stack
04:23:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:00 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:00 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  752.933428][T20607] delete_channel: no stack
04:23:00 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:00 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:00 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  753.175323][T20622] delete_channel: no stack
04:23:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:00 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:00 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:00 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  753.493403][T20645] delete_channel: no stack
04:23:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:00 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:00 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  753.789535][T20668] delete_channel: no stack
04:23:01 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:01 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:01 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:01 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  754.184662][T20695] delete_channel: no stack
04:23:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:01 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  754.396252][T20714] delete_channel: no stack
04:23:01 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:02 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:02 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  754.769147][T20732] delete_channel: no stack
04:23:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:02 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:02 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  755.094443][T20764] delete_channel: no stack
04:23:02 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  755.374906][T20782] delete_channel: no stack
04:23:02 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:02 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  755.663845][T20805] delete_channel: no stack
04:23:03 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:03 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  755.881668][T20819] delete_channel: no stack
04:23:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:03 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  756.181978][T20841] delete_channel: no stack
04:23:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:03 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  756.567737][T20869] delete_channel: no stack
04:23:04 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:04 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  756.814239][T20888] delete_channel: no stack
04:23:04 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:04 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  757.030031][T20902] delete_channel: no stack
04:23:04 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:04 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:04 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  757.317463][T20923] delete_channel: no stack
04:23:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:04 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:04 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  757.507905][T20939] delete_channel: no stack
04:23:04 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:05 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:05 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  757.799254][T20958] delete_channel: no stack
04:23:05 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:05 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:05 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  758.041263][T20977] delete_channel: no stack
04:23:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:05 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:05 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:05 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  758.406439][T21004] delete_channel: no stack
04:23:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:05 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:05 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:06 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:06 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  758.741847][T21023] delete_channel: no stack
04:23:06 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  758.956926][T21041] delete_channel: no stack
04:23:06 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:06 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:06 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  759.242843][T21060] delete_channel: no stack
04:23:06 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:06 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:06 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  759.498034][T21081] delete_channel: no stack
04:23:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:07 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  759.671231][T21093] delete_channel: no stack
04:23:07 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:07 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  759.897024][T21110] delete_channel: no stack
04:23:07 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:07 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:07 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:07 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  760.227231][T21133] delete_channel: no stack
04:23:07 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:07 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:07 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:07 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  760.548308][T21152] delete_channel: no stack
04:23:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  760.727310][T21170] delete_channel: no stack
04:23:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  760.968018][T21188] delete_channel: no stack
04:23:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  761.236369][T21206] delete_channel: no stack
04:23:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  761.601010][T21232] delete_channel: no stack
04:23:09 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:09 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:09 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:09 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  761.794140][T21248] delete_channel: no stack
04:23:09 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:09 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:09 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  762.048818][T21263] delete_channel: no stack
04:23:09 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:09 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:09 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:09 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:09 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:09 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  762.363754][T21283] delete_channel: no stack
04:23:09 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:09 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:09 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:09 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  762.630242][T21305] delete_channel: no stack
04:23:10 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:10 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:10 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  762.905515][T21326] delete_channel: no stack
04:23:10 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:10 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  763.184938][T21343] delete_channel: no stack
04:23:10 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:10 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:10 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  763.447289][T21360] delete_channel: no stack
04:23:10 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:10 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:10 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  763.651828][T21376] delete_channel: no stack
04:23:11 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:11 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:11 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  763.896176][T21391] delete_channel: no stack
04:23:11 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:11 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:11 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  764.075489][T21410] delete_channel: no stack
04:23:11 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:11 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  764.321890][T21425] delete_channel: no stack
04:23:11 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:11 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:11 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:11 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  764.565112][T21442] delete_channel: no stack
04:23:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  764.798737][T21459] delete_channel: no stack
04:23:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:12 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  765.067046][T21476] delete_channel: no stack
04:23:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:12 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  765.314467][T21497] delete_channel: no stack
04:23:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  765.656812][T21520] delete_channel: no stack
04:23:13 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:13 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:13 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  765.986657][T21548] delete_channel: no stack
04:23:13 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:13 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:13 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  766.326529][T21570] delete_channel: no stack
04:23:13 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:13 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:13 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:13 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  766.577004][T21586] delete_channel: no stack
04:23:14 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:14 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:14 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  766.912870][T21609] delete_channel: no stack
04:23:14 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  767.183244][T21630] delete_channel: no stack
04:23:14 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:14 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:14 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:14 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  767.555588][T21657] delete_channel: no stack
04:23:15 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:15 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:15 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:15 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  767.821791][T21676] delete_channel: no stack
04:23:15 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:15 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:15 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:15 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  768.164155][T21698] delete_channel: no stack
04:23:15 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:15 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:15 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  768.419861][T21723] delete_channel: no stack
04:23:15 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:15 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:15 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:15 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:16 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  768.672233][T21740] delete_channel: no stack
04:23:16 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:16 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:16 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:16 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  769.042710][T21766] delete_channel: no stack
04:23:16 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:16 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:16 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:16 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:16 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  769.399259][T21793] delete_channel: no stack
04:23:16 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:16 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:16 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  769.607066][T21804] delete_channel: no stack
04:23:17 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:17 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:17 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  769.871938][T21829] delete_channel: no stack
04:23:17 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:17 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:17 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  770.117359][T21851] delete_channel: no stack
04:23:17 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:17 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:17 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:17 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  770.434245][T21870] delete_channel: no stack
04:23:17 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:17 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:17 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:18 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  770.684959][T21884] delete_channel: no stack
04:23:18 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:18 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:18 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:18 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  770.948489][T21906] delete_channel: no stack
04:23:18 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:18 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:18 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  771.323272][T21932] delete_channel: no stack
04:23:18 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:18 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:18 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:18 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  771.571870][T21955] delete_channel: no stack
04:23:19 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:19 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:19 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:19 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  771.896285][T21975] delete_channel: no stack
04:23:19 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:19 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:19 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  772.218218][T21995] delete_channel: no stack
04:23:19 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:19 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:19 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:19 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:19 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  772.512234][T22014] delete_channel: no stack
04:23:19 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:20 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:20 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  772.860325][T22040] delete_channel: no stack
04:23:20 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:20 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:20 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:20 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  773.084504][T22060] delete_channel: no stack
04:23:20 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:20 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:20 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  773.390037][T22083] delete_channel: no stack
04:23:20 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:20 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:20 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:20 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  773.637417][T22101] delete_channel: no stack
04:23:21 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:21 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:21 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:21 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  773.993924][T22121] delete_channel: no stack
04:23:21 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:21 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:21 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:21 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  774.241290][T22143] delete_channel: no stack
04:23:21 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:21 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:21 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:21 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:21 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  774.492613][T22160] delete_channel: no stack
04:23:21 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:22 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:22 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  774.735813][T22177] delete_channel: no stack
04:23:22 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:22 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:22 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:22 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  775.038718][T22197] delete_channel: no stack
04:23:22 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:22 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:22 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:22 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:22 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  775.378731][T22224] delete_channel: no stack
04:23:22 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:22 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:22 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  775.648443][T22245] delete_channel: no stack
04:23:23 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:23 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:23 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:23 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  775.914894][T22266] delete_channel: no stack
04:23:23 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:23 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:23 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:23 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  776.197720][T22288] delete_channel: no stack
04:23:23 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:23 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:23 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:23 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:23 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  776.499312][T22308] delete_channel: no stack
04:23:23 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:23 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  776.697807][T22321] delete_channel: no stack
04:23:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:24 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:24 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  777.073725][T22348] delete_channel: no stack
04:23:24 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:24 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  777.302159][T22367] delete_channel: no stack
04:23:24 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:24 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:24 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:24 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:24 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:24 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  777.641806][T22387] delete_channel: no stack
04:23:25 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:25 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:25 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  777.959488][T22412] delete_channel: no stack
04:23:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:25 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:25 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  778.216373][T22428] delete_channel: no stack
04:23:25 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  778.356978][T22438] delete_channel: no stack
04:23:25 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:25 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:25 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:25 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  778.668891][T22464] delete_channel: no stack
04:23:26 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:26 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:26 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  779.023843][T22483] delete_channel: no stack
04:23:26 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:26 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:26 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  779.323752][T22507] delete_channel: no stack
04:23:26 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:26 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:26 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:26 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:26 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  779.549167][T22519] delete_channel: no stack
04:23:27 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:27 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:27 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  779.854435][T22542] delete_channel: no stack
04:23:27 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:27 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:27 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  780.081373][T22557] delete_channel: no stack
04:23:27 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:27 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:27 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:27 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  780.346920][T22576] delete_channel: no stack
04:23:27 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:27 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:27 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:27 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:27 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  780.606401][T22597] delete_channel: no stack
04:23:28 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:28 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:28 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:28 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  780.858074][T22618] delete_channel: no stack
04:23:28 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:28 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:28 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:28 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:28 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  781.130167][T22637] delete_channel: no stack
04:23:28 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:28 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:28 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  781.290811][T22652] delete_channel: no stack
04:23:28 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:28 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:28 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:28 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:28 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  781.492468][T22664] delete_channel: no stack
04:23:28 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:29 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:29 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  781.708801][T22680] delete_channel: no stack
04:23:29 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:29 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:29 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:29 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  781.975400][T22700] delete_channel: no stack
04:23:29 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:29 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:29 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  782.199370][T22717] delete_channel: no stack
04:23:29 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:29 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:29 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  782.475159][T22739] delete_channel: no stack
04:23:29 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:29 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:30 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:30 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  782.770392][T22754] delete_channel: no stack
04:23:30 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:30 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:30 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  782.987115][T22772] delete_channel: no stack
04:23:30 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:30 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:30 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  783.311501][T22790] delete_channel: no stack
04:23:30 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:30 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:30 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:30 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  783.571957][T22807] delete_channel: no stack
04:23:31 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:31 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  783.874353][T22831] delete_channel: no stack
04:23:31 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:31 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:31 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:31 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  784.181165][T22852] delete_channel: no stack
04:23:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:31 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:31 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  784.364357][T22864] delete_channel: no stack
04:23:31 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:31 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:31 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  784.645925][T22889] delete_channel: no stack
04:23:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  784.907559][T22907] delete_channel: no stack
04:23:32 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  785.112049][T22917] delete_channel: no stack
04:23:32 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:32 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:32 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:32 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  785.463862][T22942] delete_channel: no stack
04:23:32 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:32 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:33 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:33 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  785.760710][T22961] delete_channel: no stack
04:23:33 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:33 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:33 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:33 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  786.036110][T22985] delete_channel: no stack
04:23:33 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:33 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:33 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:33 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  786.414119][T23013] delete_channel: no stack
04:23:33 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:33 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:33 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  786.719773][T23037] delete_channel: no stack
04:23:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:34 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:34 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  787.059479][T23057] delete_channel: no stack
04:23:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:34 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  787.378698][T23087] delete_channel: no stack
04:23:34 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:34 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:34 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:35 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  787.599725][T23108] delete_channel: no stack
04:23:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:35 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  787.920435][T23127] delete_channel: no stack
04:23:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:35 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  788.218673][T23147] delete_channel: no stack
04:23:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:35 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:35 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:35 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:35 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:35 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  788.550141][T23170] delete_channel: no stack
04:23:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:36 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  788.818810][T23192] delete_channel: no stack
04:23:36 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:36 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  789.107995][T23214] delete_channel: no stack
04:23:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:36 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:36 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  789.412591][T23236] delete_channel: no stack
04:23:36 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:36 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:36 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  789.725816][T23255] delete_channel: no stack
04:23:37 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:37 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  789.894233][T23271] delete_channel: no stack
04:23:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:37 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:37 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  790.198120][T23292] delete_channel: no stack
04:23:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:37 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:37 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:37 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  790.593962][T23314] delete_channel: no stack
04:23:38 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  790.842923][T23344] delete_channel: no stack
04:23:38 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:38 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  791.137178][T23357] delete_channel: no stack
04:23:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  791.319448][T23370] delete_channel: no stack
04:23:38 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:38 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:38 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:38 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  791.656543][T23390] delete_channel: no stack
04:23:39 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:39 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:39 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  792.023367][T23423] delete_channel: no stack
04:23:39 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:39 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  792.226518][T23438] delete_channel: no stack
04:23:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:39 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:39 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:39 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  792.510824][T23458] delete_channel: no stack
04:23:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:40 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:40 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:40 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:40 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  792.757291][T23475] delete_channel: no stack
04:23:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:40 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:40 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:40 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  793.004016][T23492] delete_channel: no stack
04:23:40 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:40 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:40 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  793.266103][T23515] delete_channel: no stack
04:23:40 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:40 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:40 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:40 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:40 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:40 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:41 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  793.647553][T23534] delete_channel: no stack
04:23:41 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:41 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:41 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:41 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  793.955663][T23563] delete_channel: no stack
04:23:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:41 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:41 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:41 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:41 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  794.188737][T23576] delete_channel: no stack
04:23:41 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:41 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:41 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:41 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  794.414923][T23593] delete_channel: no stack
04:23:41 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:41 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:42 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  794.827831][T23615] delete_channel: no stack
04:23:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  795.013748][T23633] delete_channel: no stack
04:23:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:42 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  795.252400][T23650] delete_channel: no stack
04:23:42 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:42 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:42 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:42 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  795.571865][T23670] delete_channel: no stack
04:23:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:43 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  795.874778][T23693] delete_channel: no stack
04:23:43 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:43 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  796.253284][T23715] delete_channel: no stack
04:23:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:43 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:43 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:43 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  796.538848][T23737] delete_channel: no stack
04:23:43 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:44 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:44 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  796.854722][T23763] delete_channel: no stack
04:23:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:44 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:44 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  797.087332][T23779] delete_channel: no stack
04:23:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:44 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:44 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:44 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  797.398090][T23802] delete_channel: no stack
04:23:44 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:44 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:45 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:45 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  797.776098][T23831] delete_channel: no stack
04:23:45 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:45 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:45 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  798.066940][T23850] delete_channel: no stack
04:23:45 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:45 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:45 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  798.309511][T23867] delete_channel: no stack
04:23:45 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:45 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:45 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:45 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:45 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:45 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  798.568863][T23884] delete_channel: no stack
04:23:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:46 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:46 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  798.793639][T23904] delete_channel: no stack
04:23:46 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:46 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:46 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  798.999618][T23918] delete_channel: no stack
04:23:46 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:46 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  799.319909][T23943] delete_channel: no stack
04:23:46 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:46 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:46 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:46 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  799.557571][T23960] delete_channel: no stack
04:23:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:47 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  799.869891][T23980] delete_channel: no stack
04:23:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  800.094656][T23998] delete_channel: no stack
04:23:47 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:47 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  800.365929][T24017] delete_channel: no stack
04:23:47 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:47 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:47 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:47 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  800.663084][T24037] delete_channel: no stack
04:23:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  800.953626][T24059] delete_channel: no stack
04:23:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  801.196686][T24076] delete_channel: no stack
04:23:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:48 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  801.399057][T24091] delete_channel: no stack
04:23:48 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:48 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:48 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:48 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  801.727462][T24112] delete_channel: no stack
04:23:49 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:49 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:49 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  801.993368][T24131] delete_channel: no stack
04:23:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:49 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  802.249884][T24151] delete_channel: no stack
04:23:49 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:49 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:49 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:49 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  802.497566][T24167] delete_channel: no stack
04:23:49 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  802.775775][T24190] delete_channel: no stack
04:23:50 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:50 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  803.089589][T24214] delete_channel: no stack
04:23:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:50 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  803.434150][T24233] delete_channel: no stack
04:23:50 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:50 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:50 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  803.659141][T24255] delete_channel: no stack
04:23:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:51 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  803.906894][T24272] delete_channel: no stack
04:23:51 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:51 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  804.219283][T24292] delete_channel: no stack
04:23:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:51 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:51 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:51 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:51 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  804.595737][T24325] delete_channel: no stack
04:23:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:52 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:52 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  804.823700][T24335] delete_channel: no stack
04:23:52 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:52 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:52 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  805.088176][T24352] delete_channel: no stack
04:23:52 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:52 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  805.289845][T24371] delete_channel: no stack
04:23:52 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:52 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:52 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:52 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:52 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:52 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  805.568007][T24386] delete_channel: no stack
04:23:53 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:53 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:53 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:53 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  805.863356][T24411] delete_channel: no stack
04:23:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:53 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  806.137191][T24426] delete_channel: no stack
04:23:53 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:53 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:53 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:53 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:53 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  806.495037][T24451] delete_channel: no stack
04:23:53 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:54 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:54 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  806.981276][T24485] delete_channel: no stack
04:23:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:54 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:54 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  807.293793][T24505] delete_channel: no stack
04:23:54 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:54 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:54 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:54 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:54 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  807.529951][T24523] delete_channel: no stack
04:23:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:55 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  807.800806][T24539] delete_channel: no stack
04:23:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:55 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:55 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  808.195151][T24560] delete_channel: no stack
04:23:55 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:55 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:55 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  808.556694][T24593] delete_channel: no stack
04:23:56 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:56 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:56 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:56 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:56 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:56 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:56 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  808.915475][T24611] delete_channel: no stack
04:23:56 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:56 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:56 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:56 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:56 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:56 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:56 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  809.228505][T24637] delete_channel: no stack
04:23:56 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:56 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:56 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:56 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:56 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  809.460303][T24653] delete_channel: no stack
04:23:56 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:57 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:57 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  809.830743][T24680] delete_channel: no stack
04:23:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:57 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  810.121663][T24701] delete_channel: no stack
04:23:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:57 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  810.443200][T24725] delete_channel: no stack
04:23:57 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:57 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  810.752930][T24746] delete_channel: no stack
04:23:58 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:58 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  811.078504][T24766] delete_channel: no stack
04:23:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:58 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  811.407114][T24789] delete_channel: no stack
04:23:58 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:58 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:58 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:58 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  811.733057][T24815] delete_channel: no stack
04:23:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:59 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  811.849404][T24829] delete_channel: no stack
04:23:59 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:59 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:59 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:23:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  812.198700][T24847] delete_channel: no stack
04:23:59 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:23:59 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  812.479331][T24872] delete_channel: no stack
04:23:59 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:23:59 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:23:59 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  812.760658][T24891] delete_channel: no stack
04:24:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:00 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:00 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:00 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:00 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  813.053339][T24910] delete_channel: no stack
04:24:00 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:00 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:00 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:00 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  813.377734][T24928] delete_channel: no stack
04:24:00 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:00 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:00 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:00 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:00 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:00 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  813.636571][T24948] delete_channel: no stack
04:24:01 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:01 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  813.928368][T24971] delete_channel: no stack
04:24:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:01 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  814.229599][T24992] delete_channel: no stack
04:24:01 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:01 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  814.473660][T25010] delete_channel: no stack
04:24:01 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:01 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:02 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  814.768822][T25031] delete_channel: no stack
04:24:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:02 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  814.956959][T25048] delete_channel: no stack
04:24:02 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  815.221297][T25070] delete_channel: no stack
04:24:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:02 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:02 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  815.442146][T25080] delete_channel: no stack
04:24:02 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:02 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:02 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:02 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  815.626650][T25096] delete_channel: no stack
04:24:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  815.941135][T25117] delete_channel: no stack
04:24:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:03 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:03 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:03 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  816.286516][T25138] delete_channel: no stack
04:24:03 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:03 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:03 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:03 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:03 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  816.571318][T25160] delete_channel: no stack
04:24:04 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:04 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:04 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:04 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  816.956755][T25197] delete_channel: no stack
04:24:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:04 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:04 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  817.099030][T25204] delete_channel: no stack
04:24:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:04 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:04 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:04 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  817.374780][T25225] delete_channel: no stack
04:24:04 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:04 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:04 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:04 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:05 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  817.724239][T25249] delete_channel: no stack
04:24:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:05 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:05 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:05 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  817.988933][T25267] delete_channel: no stack
04:24:05 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:05 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:05 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  818.315855][T25293] delete_channel: no stack
04:24:05 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:05 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:05 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:05 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  818.510044][T25304] delete_channel: no stack
04:24:05 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:06 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  818.831927][T25324] delete_channel: no stack
04:24:06 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:06 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  819.094857][T25344] delete_channel: no stack
04:24:06 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:06 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  819.381794][T25364] delete_channel: no stack
04:24:06 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:06 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:06 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:06 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:06 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  819.561601][T25377] delete_channel: no stack
04:24:07 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:07 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  819.808389][T25396] delete_channel: no stack
04:24:07 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:07 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:07 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  820.131454][T25418] delete_channel: no stack
04:24:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:07 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:07 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  820.423647][T25437] delete_channel: no stack
04:24:07 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  820.841191][T25464] delete_channel: no stack
04:24:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  821.108403][T25485] delete_channel: no stack
04:24:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:08 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  821.476132][T25514] delete_channel: no stack
04:24:08 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:08 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:08 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  821.739520][T25530] delete_channel: no stack
04:24:09 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:09 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:09 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  822.001635][T25555] delete_channel: no stack
04:24:09 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:09 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:09 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:09 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  822.310975][T25570] delete_channel: no stack
04:24:09 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:09 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:09 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:09 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:10 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  822.653875][T25597] delete_channel: no stack
04:24:10 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:10 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:10 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:10 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  822.936554][T25617] delete_channel: no stack
04:24:10 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:10 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:10 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:10 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  823.197986][T25635] delete_channel: no stack
04:24:10 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:10 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:10 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:10 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  823.515144][T25657] delete_channel: no stack
04:24:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:11 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:11 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

[  823.755277][T25679] delete_channel: no stack
04:24:11 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:11 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:11 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  824.070315][T25701] delete_channel: no stack
04:24:11 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:11 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:11 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:11 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:11 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  824.483859][T25728] delete_channel: no stack
04:24:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  824.841174][T25751] delete_channel: no stack
04:24:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:12 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  825.057294][T25766] delete_channel: no stack
04:24:12 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:12 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  825.379220][T25795] delete_channel: no stack
04:24:12 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:12 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:12 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:12 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  825.739103][T25818] delete_channel: no stack
04:24:13 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:13 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:13 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  826.020198][T25835] delete_channel: no stack
04:24:13 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:13 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:13 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

[  826.284448][T25854] delete_channel: no stack
04:24:13 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:13 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:13 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:13 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  826.509478][T25875] delete_channel: no stack
04:24:14 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:14 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:14 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:14 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  826.785600][T25892] delete_channel: no stack
04:24:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:14 executing program 1:
io_uring_setup(0x14f, &(0x7f0000000100)={0x0, 0x0, 0x2})
io_uring_enter(0xffffffffffffffff, 0x5, 0x100, 0x0, &(0x7f0000000180)={0x7fffffff}, 0x8)

04:24:14 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:14 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:14 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  827.175729][T25919] delete_channel: no stack
04:24:14 executing program 2:
mknod$loop(0x0, 0x0, 0xffffffffffffffff)
perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x0, 0x0)
ioctl$SG_SET_RESERVED_SIZE(0xffffffffffffffff, 0x2275, &(0x7f0000000080))
mount$fuse(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f00000001c0)='fuse\x00', 0x2000000, &(0x7f0000000540)=ANY=[@ANYBLOB='fd=', @ANYRESHEX, @ANYBLOB=',rootmode=00000000000000000130000,user_id=', @ANYRESDEC, @ANYBLOB=',group_id=', @ANYRESDEC, @ANYBLOB="2c616c6c6f776c745f7065726d697373696f6e732c6d61785f726561643d3078303030303030303030303030303031352c626c6b73697a653d3078303030303030303030303030303230302c64656661756c745f7065726d697373696f6e732c6d61785f726561643d3078666666666666666666666666666663302c736d61636b66736465663d73656c696e75782c7063723d30303030135c0da0303030303030303030303030303030382c61707072616973655f747970653d696d617369672c61705472616973655f747970653d696d617369672c736d61636b66737472616e736d7574653d262365746831332c7569643d", @ANYRESDEC, @ANYBLOB=',dont_hash,\x00'])
ioctl$ION_IOC_ALLOC(0xffffffffffffffff, 0xc0184900, &(0x7f0000000100)={0x4, 0x0, 0x1})

04:24:14 executing program 0:
socket(0x22, 0x2, 0x25)
r0 = dup(0xffffffffffffffff)
ioctl$BLKROTATIONAL(r0, 0x127e, &(0x7f0000000000))

04:24:14 executing program 5:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

04:24:14 executing program 4:
openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  827.401970][T25939] delete_channel: no stack
04:24:14 executing program 3:
r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x0, 0x0)
ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x6, 0x0, 0x0, 0x0, 0x0, 0x7fff})
ioctl$TCSETSF(r0, 0x5404, &(0x7f00000001c0)={0x7, 0x7ff, 0x21c3, 0x0, 0x19, 0x241d, 0x1408, 0x1ff, 0x3f, 0x100, 0x3, 0xd8})

[  980.998443][ T1046] INFO: task syz-executor.1:25914 blocked for more than 143 seconds.
[  981.006608][ T1046]       Not tainted 5.2.0+ #46
[  981.011482][ T1046] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  981.020397][ T1046] syz-executor.1  D28128 25914   9182 0x00004004
[  981.026728][ T1046] Call Trace:
[  981.030059][ T1046]  __schedule+0x7cb/0x1560
[  981.034473][ T1046]  ? __sched_text_start+0x8/0x8
[  981.039407][ T1046]  schedule+0xa8/0x260
[  981.043504][ T1046]  schedule_timeout+0x717/0xc50
[  981.048423][ T1046]  ? wait_for_completion+0x294/0x440
[  981.053906][ T1046]  ? find_held_lock+0x35/0x130
[  981.058722][ T1046]  ? usleep_range+0x170/0x170
[  981.063399][ T1046]  ? kasan_check_write+0x14/0x20
[  981.068435][ T1046]  ? _raw_spin_unlock_irq+0x28/0x90
[  981.073657][ T1046]  ? wait_for_completion+0x294/0x440
[  981.079040][ T1046]  ? _raw_spin_unlock_irq+0x28/0x90
[  981.084237][ T1046]  ? lockdep_hardirqs_on+0x418/0x5d0
[  981.089557][ T1046]  ? trace_hardirqs_on+0x67/0x220
[  981.094582][ T1046]  ? kasan_check_read+0x11/0x20
[  981.099493][ T1046]  wait_for_completion+0x29c/0x440
[  981.104597][ T1046]  ? try_to_wake_up+0xc8/0x13f0
[  981.109492][ T1046]  ? wait_for_completion_interruptible+0x4b0/0x4b0
[  981.115995][ T1046]  ? wake_up_q+0xf0/0xf0
[  981.120311][ T1046]  kthread_stop+0x10b/0x6c0
[  981.124804][ T1046]  io_finish_async+0x73/0x140
[  981.129540][ T1046]  io_ring_ctx_wait_and_kill+0x133/0x600
[  981.135171][ T1046]  io_uring_release+0x42/0x50
[  981.139924][ T1046]  __fput+0x2ff/0x890
[  981.143958][ T1046]  ? io_ring_ctx_wait_and_kill+0x600/0x600
[  981.149912][ T1046]  ____fput+0x16/0x20
[  981.153919][ T1046]  task_work_run+0x145/0x1c0
[  981.158583][ T1046]  exit_to_usermode_loop+0x273/0x2c0
[  981.163868][ T1046]  do_syscall_64+0x58e/0x680
[  981.168508][ T1046]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  981.174404][ T1046] RIP: 0033:0x4134b1
[  981.178338][ T1046] Code: cf 48 c1 e9 03 4c 8b 05 a5 1c 3b 01 48 c1 ef 05 49 29 f8 49 8d 78 ff 48 83 e1 03 48 83 fa 10 0f 84 a7 04 00 00 44 0f b6 43 17 <41> f6 c0 40 0f 85 58 04 00 00 4c 8b 03 48 8b 44 24 68 49 39 c0 0f
[  981.197980][ T1046] RSP: 002b:00007ffd08d95490 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[  981.206447][ T1046] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004134b1
[  981.214447][ T1046] RDX: 0000001b31920000 RSI: 0000000000000000 RDI: 0000000000000003
[  981.222572][ T1046] RBP: 0000000000000001 R08: 00000000d780563d R09: 00000000d7805641
[  981.230575][ T1046] R10: 00007ffd08d95570 R11: 0000000000000293 R12: 000000000075bf20
[  981.238660][ T1046] R13: 00000000000c9ebc R14: 0000000000760580 R15: ffffffffffffffff
[  981.246638][ T1046] 
[  981.246638][ T1046] Showing all locks held in the system:
[  981.254418][ T1046] 1 lock held by khungtaskd/1046:
[  981.259510][ T1046]  #0: 00000000c0f9a115 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e
[  981.268886][ T1046] 2 locks held by rsyslogd/9012:
[  981.273811][ T1046]  #0: 00000000d3c4666b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110
[  981.282502][ T1046]  #1: 00000000cb91ea95 (&rq->lock){-.-.}, at: __schedule+0x1f5/0x1560
[  981.290775][ T1046] 2 locks held by getty/9134:
[  981.295433][ T1046]  #0: 00000000b7d85851 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40
[  981.304437][ T1046]  #1: 0000000079d76f39 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70
[  981.314149][ T1046] 2 locks held by getty/9135:
[  981.318880][ T1046]  #0: 000000009d4afb52 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40
[  981.327866][ T1046]  #1: 000000005b982f5f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70
[  981.337550][ T1046] 2 locks held by getty/9136:
[  981.342299][ T1046]  #0: 0000000054ce746a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40
[  981.351454][ T1046]  #1: 0000000092defdc8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70
[  981.361114][ T1046] 2 locks held by getty/9137:
[  981.365840][ T1046]  #0: 00000000b81ef5b6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40
[  981.375034][ T1046]  #1: 000000002b365abc (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70
[  981.384786][ T1046] 2 locks held by getty/9138:
[  981.389576][ T1046]  #0: 000000009b472c7d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40
[  981.399045][ T1046]  #1: 00000000672f961a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70
[  981.408711][ T1046] 2 locks held by getty/9139:
[  981.413376][ T1046]  #0: 00000000c61b1249 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40
[  981.422391][ T1046]  #1: 00000000ab8f3fa2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70
[  981.431981][ T1046] 2 locks held by getty/9140:
[  981.436672][ T1046]  #0: 000000007b856c01 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40
[  981.445681][ T1046]  #1: 0000000085475c57 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70
[  981.455264][ T1046] 
[  981.457579][ T1046] =============================================
[  981.457579][ T1046] 
[  981.466045][ T1046] NMI backtrace for cpu 1
[  981.470389][ T1046] CPU: 1 PID: 1046 Comm: khungtaskd Not tainted 5.2.0+ #46
[  981.477580][ T1046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  981.487622][ T1046] Call Trace:
[  981.490946][ T1046]  dump_stack+0x172/0x1f0
[  981.495272][ T1046]  nmi_cpu_backtrace.cold+0x63/0xa4
[  981.500454][ T1046]  ? lapic_can_unplug_cpu.cold+0x38/0x38
[  981.506149][ T1046]  nmi_trigger_cpumask_backtrace+0x1be/0x236
[  981.512116][ T1046]  arch_trigger_cpumask_backtrace+0x14/0x20
[  981.517996][ T1046]  watchdog+0x9b7/0xec0
[  981.522149][ T1046]  kthread+0x354/0x420
[  981.526194][ T1046]  ? reset_hung_task_detector+0x30/0x30
[  981.531798][ T1046]  ? kthread_cancel_delayed_work_sync+0x20/0x20
[  981.538031][ T1046]  ret_from_fork+0x24/0x30
[  981.542660][ T1046] Sending NMI from CPU 1 to CPUs 0:
[  981.548002][    C0] NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10
[  981.548865][ T1046] Kernel panic - not syncing: hung_task: blocked tasks
[  981.563180][ T1046] CPU: 1 PID: 1046 Comm: khungtaskd Not tainted 5.2.0+ #46
[  981.570353][ T1046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  981.580403][ T1046] Call Trace:
[  981.583763][ T1046]  dump_stack+0x172/0x1f0
[  981.588172][ T1046]  panic+0x2cb/0x744
[  981.592084][ T1046]  ? __warn_printk+0xf3/0xf3
[  981.596656][ T1046]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  981.602359][ T1046]  ? printk_safe_flush+0xf2/0x140
[  981.607509][ T1046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  981.613736][ T1046]  ? lapic_can_unplug_cpu.cold+0x38/0x38
[  981.619348][ T1046]  ? nmi_trigger_cpumask_backtrace+0x1a7/0x236
[  981.625587][ T1046]  ? nmi_trigger_cpumask_backtrace+0x19e/0x236
[  981.631815][ T1046]  watchdog+0x9c8/0xec0
[  981.635962][ T1046]  kthread+0x354/0x420
[  981.640013][ T1046]  ? reset_hung_task_detector+0x30/0x30
[  981.645679][ T1046]  ? kthread_cancel_delayed_work_sync+0x20/0x20
[  981.652003][ T1046]  ret_from_fork+0x24/0x30
[  981.657511][ T1046] Kernel Offset: disabled
[  981.661852][ T1046] Rebooting in 86400 seconds..