sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.3/3994
Modules linked in:
CPU: 0 UID: 0 PID: 3994 Comm: syz-executor.3 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:mntput_no_expire+0x78e/0xbe0
Code: 05 16 42 81 04 01 e8 31 f8 91 ff e9 41 fc ff ff e8 b7 50 b4 ff 31 ff 44 89 ee e8 dd 4b b4 ff 45 85 ed 79 09 e8 a3 50 b4 ff 90 <0f> 0b 90 e8 9a 50 b4 ff e8 75 f6 fb 02 31 ff 89 c5 89 c6 e8 ba 4b
RSP: 0018:ffff8880168d7c30 EFLAGS: 00010216
RAX: 0000000000003ce8 RBX: 1ffff11002d1af8b RCX: ffffc90004eb1000
RDX: 0000000000040000 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff888016561340 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff8880168d7c98
R13: 00000000ffffffff R14: dead000000000100 R15: ffff888016561340
FS: 00007f1496da7700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d129000 CR3: 000000000fa29000 CR4: 0000000000350ef0
Call Trace:
namespace_unlock+0x57d/0x810
put_mnt_ns+0xf5/0x120
free_nsproxy+0x3a/0x400
switch_task_namespaces+0xe2/0x100
ksys_unshare+0x520/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1499852b19
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:00007f1496da7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f1499966020 RCX: 00007f1499852b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000002020000
RBP: 00007f14998acf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff5fae366f R14: 00007f1496da7300 R15: 0000000000022000
irq event stamp: 8607
hardirqs last enabled at (8617): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (8626): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (8410): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (8363): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
kmemleak: Found object by alias at 0x607f1a6392f4
CPU: 1 UID: 0 PID: 4007 Comm: syz-executor.4 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f082505ab19
Code: Unable to access opcode bytes at 0x7f082505aaef.
RSP: 002b:00007ffd33b108d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f082505ab19
RDX: 00007f082500d72b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000001b2d3280b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd33b109c0
kmemleak: Object (percpu) 0x607f1a6392e8 (size 16):
kmemleak: comm "syz-executor.7", pid 282, jiffies 4294825597
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
__percpu_counter_init_many+0x44/0x360
mm_init+0xcac/0x1170
copy_process+0x3ab7/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Cannot insert 0x607f1a6392f4 into the object search tree (overlaps existing)
CPU: 1 UID: 0 PID: 4006 Comm: syz-executor.3 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xca/0x120
__link_object+0x190/0x210
__create_object+0x48/0x80
pcpu_alloc_noprof+0x87a/0x1170
alloc_netdev_mqs+0x131/0x1360
loopback_net_init+0x38/0x180
ops_init+0x1e1/0x650
setup_net+0x10d/0x320
copy_net_ns+0x2e3/0x650
create_new_namespaces+0x3f6/0xab0
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1499852b19
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:00007f1496dc8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f1499965f60 RCX: 00007f1499852b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000004a000080
RBP: 00007f14998acf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff5fae366f R14: 00007f1496dc8300 R15: 0000000000022000
kmemleak: Kernel memory leak detector disabled
kmemleak: Object (percpu) 0x607f1a6392e8 (size 16):
kmemleak: comm "syz-executor.7", pid 282, jiffies 4294825597
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
__percpu_counter_init_many+0x44/0x360
mm_init+0xcac/0x1170
copy_process+0x3ab7/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Automatic memory scanning thread ended
Unsupported ieee802154 address type: 0
loop4: detected capacity change from 0 to 240
BUG: Bad rss-counter state mm:000000008b232013 type:MM_SHMEMPAGES val:1 Comm:syz-executor.7 Pid:4022