program syz-executor.3 not setting count and/or reply_len properly
FAT-fs (loop4): bogus sectors per cluster 0
FAT-fs (loop4): Can't find a valid FAT filesystem
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WARNING: CPU: 0 PID: 4442 at lib/iov_iter.c:385 _copy_from_iter+0x2b2/0x1330
Modules linked in:
CPU: 0 PID: 4442 Comm: syz-executor.3 Not tainted 6.3.0-rc7-next-20230421 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2b2/0x1330
Code: 5d 41 5e 41 5f e9 c2 86 36 02 e8 b9 5a 36 ff be 85 01 00 00 48 c7 c7 40 cf 9e 84 e8 98 6c 5a ff e9 51 fe ff ff e8 9e 5a 36 ff <0f> 0b 45 31 f6 eb 87 e8 92 5a 36 ff 31 ff 89 ee e8 c9 55 36 ff 40
RSP: 0018:ffff88801cfa7608 EFLAGS: 00010212
RAX: 0000000000004c53 RBX: 0000000000000000 RCX: ffffc900059f8000
RDX: 0000000000040000 RSI: ffffffff82157ce2 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffff88801cfa7838 R14: 0000000000001000 R15: ffff88801cfa7838
FS: 00007fa947bbe700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe0744ca48 CR3: 00000000164c0000 CR4: 0000000000350ef0
Call Trace:
copy_page_from_iter+0xe3/0x180
blk_rq_map_user_iov+0xb39/0x16c0
blk_rq_map_user_io+0x1d1/0x200
sg_common_write.constprop.0+0xd8d/0x15f0
sg_write.part.0+0x698/0xac0
sg_write+0x8d/0xe0
vfs_write+0x2d8/0xdd0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fa94a648b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa947bbe188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa94a75bf60 RCX: 00007fa94a648b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007fa94a6a2f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2796a74f R14: 00007fa947bbe300 R15: 0000000000022000
irq event stamp: 4047
hardirqs last enabled at (4073): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (4096): [] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last enabled at (1046): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (953): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
loop7: detected capacity change from 0 to 40
audit: type=1400 audit(1682336065.853:13): avc: denied { read } for pid=4441 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
syz-executor.7: attempt to access beyond end of device
loop7: rw=2049, sector=84, nr_sectors = 8 limit=40
syz-executor.7: attempt to access beyond end of device
loop7: rw=2049, sector=88, nr_sectors = 4 limit=40
Buffer I/O error on dev loop7, logical block 22, lost async page write
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.3 not setting count and/or reply_len properly
syz-executor.7: attempt to access beyond end of device
loop7: rw=2049, sector=88, nr_sectors = 4 limit=40
Buffer I/O error on dev loop7, logical block 22, lost async page write
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4456 comm=syz-executor.3