audit: type=1400 audit(1679914281.936:8): avc: denied { open } for pid=4311 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 audit: type=1400 audit(1679914281.936:9): avc: denied { kernel } for pid=4311 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 general protection fault, probably for non-canonical address 0xdffffc0004000000: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000000-0x0000000020000007] CPU: 1 PID: 4316 Comm: syz-executor.5 Not tainted 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f421000 CR3: 0000000020780000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f442d4d7b19 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:00007f442aa4d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f442d5eaf60 RCX: 00007f442d4d7b19 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f442d531f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b1adb1f R14: 00007f442aa4d300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f421000 CR3: 0000000020780000 CR4: 0000000000350ee0 ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' ieee80211 phy14: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready ieee80211 phy16: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy17: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready ieee80211 phy18: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy19: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready general protection fault, probably for non-canonical address 0xdffffc0004000000: 0000 [#2] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000000-0x0000000020000007] CPU: 1 PID: 4507 Comm: syz-executor.5 Tainted: G D 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888038aefc70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff888038aefd58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff88800e9f9680 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f442d5eb018 CR3: 000000000eee8000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f442d4d7b19 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:00007f442aa4d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f442d5eaf60 RCX: 00007f442d4d7b19 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f442d531f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b1adb1f R14: 00007f442aa4d300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f442d5eb018 CR3: 000000000eee8000 CR4: 0000000000350ee0 hrtimer: interrupt took 19827 ns general protection fault, probably for non-canonical address 0xdffffc0004000000: 0000 [#3] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000000-0x0000000020000007] CPU: 0 PID: 4562 Comm: syz-executor.5 Tainted: G D 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888039bffc70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff888039bffd58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff88801a1b7900 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f421000 CR3: 0000000037186000 CR4: 0000000000350ef0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f442d4d7b19 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:00007f442aa4d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f442d5eaf60 RCX: 00007f442d4d7b19 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f442d531f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b1adb1f R14: 00007f442aa4d300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f421000 CR3: 0000000037186000 CR4: 0000000000350ef0 general protection fault, probably for non-canonical address 0xdffffc0004000000: 0000 [#4] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000000-0x0000000020000007] CPU: 0 PID: 4596 Comm: syz-executor.5 Tainted: G D 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888039c97c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff888039c97d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888010216280 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f421000 CR3: 0000000016374000 CR4: 0000000000350ef0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f442d4d7b19 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:00007f442aa4d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f442d5eaf60 RCX: 00007f442d4d7b19 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f442d531f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b1adb1f R14: 00007f442aa4d300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f442aa4d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f421000 CR3: 0000000016374000 CR4: 0000000000350ef0 general protection fault, probably for non-canonical address 0xdffffc0004000000: 0000 [#5] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000000-0x0000000020000007] CPU: 1 PID: 4656 Comm: syz-executor.4 Tainted: G D 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888039f4fc70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff888039f4fd58 RCX: ffffc90004efe000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff88800e36e780 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f0986733700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd7c7d0c47c CR3: 000000000efce000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f09891bdb19 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:00007f0986733188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f09892d0f60 RCX: 00007f09891bdb19 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f0989217f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe33d2173f R14: 00007f0986733300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f0986733700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd7c7d0c47c CR3: 000000000efce000 CR4: 0000000000350ee0 general protection fault, probably for non-canonical address 0xdffffc0004000000: 0000 [#6] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000000-0x0000000020000007] CPU: 1 PID: 4679 Comm: syz-executor.4 Tainted: G D 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff888019ccfc70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff888019ccfd58 RCX: ffffc90004efe000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff8880206fac80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f0986733700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f921000 CR3: 0000000020744000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f09891bdb19 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:00007f0986733188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f09892d0f60 RCX: 00007f09891bdb19 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f0989217f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe33d2173f R14: 00007f0986733300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f0986733700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f921000 CR3: 0000000020744000 CR4: 0000000000350ee0 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy general protection fault, probably for non-canonical address 0xdffffc0004000000: 0000 [#7] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000020000000-0x0000000020000007] CPU: 1 PID: 4721 Comm: syz-executor.4 Tainted: G D 6.3.0-rc3-next-20230327 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff88803970fc70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff88803970fd58 RCX: ffffc90004efe000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff88800eb89400 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f0986733700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f921000 CR3: 0000000019b02000 CR4: 0000000000350ee0 Call Trace: vfs_readv+0xe5/0x160 do_readv+0x133/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f09891bdb19 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:00007f0986733188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f09892d0f60 RCX: 00007f09891bdb19 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f0989217f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe33d2173f R14: 00007f0986733300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_iter_read+0x481/0x750 Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00 RSP: 0018:ffff8880205b7c70 EFLAGS: 00010216 RAX: 0000000020000000 RBX: ffff8880205b7d58 RCX: ffffc90003ef6000 RDX: 0000000004000000 RSI: ffffffff81855c98 RDI: 0000000000000007 RBP: 0000000000000038 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000038 R11: 0000000000000001 R12: ffff888009674c80 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840 FS: 00007f0986733700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f921000 CR3: 0000000019b02000 CR4: 0000000000350ee0 misc raw-gadget: fail, usb_gadget_register_driver returned -16 Zero length message leads to an empty skb lo: entered promiscuous mode lo: entered allmulticast mode ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 85 52 02 test %edx,0x2(%rdx) 5: 00 00 add %al,(%rax) 7: 4d 8b 7c 24 28 mov 0x28(%r12),%r15 c: e8 48 2c c6 ff callq 0xffc62c59 11: 48 8b 44 24 18 mov 0x18(%rsp),%rax 16: 80 38 00 cmpb $0x0,(%rax) 19: 0f 85 1c 02 00 00 jne 0x23b 1f: 48 8b 43 18 mov 0x18(%rbx),%rax 23: 48 89 c2 mov %rax,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 42 80 3c 32 00 cmpb $0x0,(%rdx,%r14,1) <-- trapping instruction 2f: 0f 85 ef 01 00 00 jne 0x224 35: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx 3a: 48 8b 30 mov (%rax),%rsi 3d: 80 39 00 cmpb $0x0,(%rcx)