program:
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
r1 = syz_open_dev$dri(&(0x7f0000000000), 0x0, 0x0)
ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r1, 0xc02064b2, &(0x7f0000000040)={0x3, 0x6576, 0xd})
mmap(&(0x7f0000001000/0x4000)=nil, 0x4000, 0x4, 0x11, r1, 0x100000000)
sendmmsg$inet6(r0, &(0x7f00000080c0)=[{{&(0x7f0000000480)={0xa, 0x4e21, 0x8, @private2, 0x6}, 0x1c, &(0x7f00000000c0)=[{&(0x7f00000004c0)="b4", 0x1}], 0x1}}, {{0x0, 0x0, &(0x7f0000001c80)=[{0x0}], 0x1}}], 0x2, 0x931766f6319eed40)
shutdown(r0, 0x1)
[ 68.497779][ T47] Bluetooth: hci0: command tx timeout
[ 68.578975][ T5316] ==================================================================
[ 68.582907][ T5316] BUG: KASAN: slab-out-of-bounds in change_page_attr_set_clr+0x625/0xfc0
[ 68.586459][ T5316] Read of size 8 at addr ffff88803f1becf8 by task syz.0.0/5316
[ 68.589377][ T5316]
[ 68.590347][ T5316] CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 68.590363][ T5316] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 68.590370][ T5316] Call Trace:
[ 68.590384][ T5316]
[ 68.590390][ T5316] dump_stack_lvl+0x189/0x250
[ 68.590406][ T5316] ? __kasan_check_byte+0x12/0x40
[ 68.590458][ T5316] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.590470][ T5316] ? lock_release+0x4b/0x3e0
[ 68.590489][ T5316] ? __virt_addr_valid+0x4a5/0x5c0
[ 68.590503][ T5316] print_report+0xca/0x240
[ 68.590526][ T5316] ? change_page_attr_set_clr+0x625/0xfc0
[ 68.590539][ T5316] kasan_report+0x118/0x150
[ 68.590551][ T5316] ? change_page_attr_set_clr+0x625/0xfc0
[ 68.590568][ T5316] change_page_attr_set_clr+0x625/0xfc0
[ 68.590584][ T5316] ? __pfx_change_page_attr_set_clr+0x10/0x10
[ 68.590597][ T5316] ? __pfx_pagerange_is_ram_callback+0x10/0x10
[ 68.590608][ T5316] ? memtype_reserve+0x874/0xb30
[ 68.590626][ T5316] ? __pfx___ww_mutex_lock+0x10/0x10
[ 68.590671][ T5316] _set_pages_array+0x145/0x270
[ 68.590688][ T5316] drm_gem_shmem_get_pages_locked+0x2d0/0x440
[ 68.590712][ T5316] ? __pfx_drm_gem_shmem_get_pages_locked+0x10/0x10
[ 68.590728][ T5316] ? ww_mutex_lock+0x3f/0x1c0
[ 68.590739][ T5316] drm_gem_shmem_mmap+0x193/0x460
[ 68.590755][ T5316] drm_gem_mmap_obj+0x18a/0x4e0
[ 68.590767][ T5316] drm_gem_mmap+0x384/0x640
[ 68.590778][ T5316] ? __pfx_drm_gem_mmap+0x10/0x10
[ 68.590789][ T5316] ? __mas_set_range+0x12f/0x3c0
[ 68.590804][ T5316] mmap_region+0x18b4/0x2110
[ 68.590819][ T5316] ? __pfx_mmap_region+0x10/0x10
[ 68.590847][ T5316] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[ 68.590865][ T5316] ? bpf_lsm_mmap_addr+0x9/0x20
[ 68.590876][ T5316] ? security_mmap_addr+0x71/0x270
[ 68.590889][ T5316] ? shmem_mapping+0xd/0x50
[ 68.590901][ T5316] ? memfd_check_seals_mmap+0xc5/0x200
[ 68.590917][ T5316] do_mmap+0xc45/0x10d0
[ 68.590935][ T5316] ? __pfx_do_mmap+0x10/0x10
[ 68.590948][ T5316] ? down_write_killable+0x178/0x230
[ 68.590960][ T5316] ? __pfx_down_write_killable+0x10/0x10
[ 68.590971][ T5316] ? common_file_perm+0x1b5/0x230
[ 68.590988][ T5316] vm_mmap_pgoff+0x2a6/0x4d0
[ 68.591002][ T5316] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 68.591015][ T5316] ? __fget_files+0x2a/0x420
[ 68.591026][ T5316] ? __fget_files+0x2a/0x420
[ 68.591036][ T5316] ? __fget_files+0x2a/0x420
[ 68.591047][ T5316] ksys_mmap_pgoff+0x51f/0x760
[ 68.591063][ T5316] do_syscall_64+0xfa/0xfa0
[ 68.591074][ T5316] ? lockdep_hardirqs_on+0x9c/0x150
[ 68.591090][ T5316] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.591101][ T5316] ? clear_bhb_loop+0x60/0xb0
[ 68.591114][ T5316] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.591124][ T5316] RIP: 0033:0x7fd7c5b8eec9
[ 68.591135][ T5316] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 68.591143][ T5316] RSP: 002b:00007fd7c6996038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 68.591155][ T5316] RAX: ffffffffffffffda RBX: 00007fd7c5de5fa0 RCX: 00007fd7c5b8eec9
[ 68.591164][ T5316] RDX: 0000000000000004 RSI: 0000000000004000 RDI: 0000200000001000
[ 68.591170][ T5316] RBP: 00007fd7c5c11f91 R08: 0000000000000004 R09: 0000000100000000
[ 68.591177][ T5316] R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
[ 68.591183][ T5316] R13: 00007fd7c5de6038 R14: 00007fd7c5de5fa0 R15: 00007ffe8deebc38
[ 68.591194][ T5316]
[ 68.591198][ T5316]
[ 68.736228][ T5316] Allocated by task 5316:
[ 68.737960][ T5316] kasan_save_track+0x3e/0x80
[ 68.739968][ T5316] __kasan_kmalloc+0x93/0xb0
[ 68.742038][ T5316] __kvmalloc_node_noprof+0x5cd/0x910
[ 68.744415][ T5316] drm_gem_get_pages+0x166/0xa20
[ 68.746639][ T5316] drm_gem_shmem_get_pages_locked+0x201/0x440
[ 68.749270][ T5316] drm_gem_shmem_mmap+0x193/0x460
[ 68.751551][ T5316] drm_gem_mmap_obj+0x18a/0x4e0
[ 68.753703][ T5316] drm_gem_mmap+0x384/0x640
[ 68.755604][ T5316] mmap_region+0x18b4/0x2110
[ 68.757507][ T5316] do_mmap+0xc45/0x10d0
[ 68.759223][ T5316] vm_mmap_pgoff+0x2a6/0x4d0
[ 68.761087][ T5316] ksys_mmap_pgoff+0x51f/0x760
[ 68.763065][ T5316] do_syscall_64+0xfa/0xfa0
[ 68.764863][ T5316] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.767201][ T5316]
[ 68.768175][ T5316] The buggy address belongs to the object at ffff88803f1bec00
[ 68.768175][ T5316] which belongs to the cache kmalloc-256 of size 256
[ 68.773636][ T5316] The buggy address is located 0 bytes to the right of
[ 68.773636][ T5316] allocated 248-byte region [ffff88803f1bec00, ffff88803f1becf8)
[ 68.779720][ T5316]
[ 68.780785][ T5316] The buggy address belongs to the physical page:
[ 68.783597][ T5316] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3f1be
[ 68.787226][ T5316] flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
[ 68.790298][ T5316] page_type: f5(slab)
[ 68.792066][ T5316] raw: 04fff00000000000 ffff88801a441b40 ffffea0000fede40 dead000000000002
[ 68.795782][ T5316] raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000
[ 68.799566][ T5316] page dumped because: kasan: bad access detected
[ 68.802447][ T5316] page_owner tracks the page as allocated
[ 68.804949][ T5316] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 24216943599, free_ts 24197295416
[ 68.812785][ T5316] post_alloc_hook+0x240/0x2a0
[ 68.814894][ T5316] get_page_from_freelist+0x2365/0x2440
[ 68.817287][ T5316] __alloc_frozen_pages_noprof+0x181/0x370
[ 68.819904][ T5316] alloc_pages_mpol+0x232/0x4a0
[ 68.822095][ T5316] allocate_slab+0x96/0x3a0
[ 68.824121][ T5316] ___slab_alloc+0xe94/0x18a0
[ 68.826173][ T5316] __slab_alloc+0x65/0x100
[ 68.828156][ T5316] __kmalloc_node_track_caller_noprof+0x5c7/0x800
[ 68.831157][ T5316] krealloc_node_align_noprof+0x140/0x390
[ 68.833624][ T5316] add_sysfs_param+0xd4/0xa30
[ 68.835744][ T5316] kernel_add_sysfs_param+0x7f/0xe0
[ 68.838080][ T5316] param_sysfs_builtin+0x18a/0x230
[ 68.840238][ T5316] param_sysfs_builtin_init+0x23/0x30
[ 68.842650][ T5316] do_one_initcall+0x236/0x820
[ 68.844699][ T5316] do_initcall_level+0x104/0x190
[ 68.846926][ T5316] do_initcalls+0x59/0xa0
[ 68.848788][ T5316] page last free pid 55 tgid 55 stack trace:
[ 68.851394][ T5316] __free_frozen_pages+0xbc4/0xd30
[ 68.853592][ T5316] vfree+0x25a/0x400
[ 68.855349][ T5316] delayed_vfree_work+0x55/0x80
[ 68.857497][ T5316] process_scheduled_works+0xae1/0x17b0
[ 68.860041][ T5316] worker_thread+0x8a0/0xda0
[ 68.862171][ T5316] kthread+0x711/0x8a0
[ 68.863973][ T5316] ret_from_fork+0x4bc/0x870
[ 68.866011][ T5316] ret_from_fork_asm+0x1a/0x30
[ 68.868133][ T5316]
[ 68.869202][ T5316] Memory state around the buggy address:
[ 68.871761][ T5316] ffff88803f1beb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.876493][ T5316] ffff88803f1bec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 68.879875][ T5316] >ffff88803f1bec80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[ 68.883235][ T5316] ^
[ 68.886681][ T5316] ffff88803f1bed00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.890087][ T5316] ffff88803f1bed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.893628][ T5316] ==================================================================
[ 68.911354][ T5316] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 68.914457][ T5316] CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 68.918345][ T5316] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 68.922986][ T5316] Call Trace:
[ 68.924458][ T5316]
[ 68.925755][ T5316] dump_stack_lvl+0x99/0x250
[ 68.927807][ T5316] ? __asan_memcpy+0x40/0x70
[ 68.929742][ T5316] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.932014][ T5316] ? __pfx__printk+0x10/0x10
[ 68.934046][ T5316] vpanic+0x237/0x6d0
[ 68.935781][ T5316] ? __pfx_vpanic+0x10/0x10
[ 68.937680][ T5316] ? preempt_schedule+0xae/0xc0
[ 68.939846][ T5316] ? __pfx_preempt_schedule+0x10/0x10
[ 68.942080][ T5316] panic+0xb9/0xc0
[ 68.943711][ T5316] ? __pfx_panic+0x10/0x10
[ 68.945632][ T5316] ? _raw_spin_unlock_irqrestore+0xfd/0x110
[ 68.948090][ T5316] ? change_page_attr_set_clr+0x625/0xfc0
[ 68.950453][ T5316] check_panic_on_warn+0x89/0xb0
[ 68.952803][ T5316] ? change_page_attr_set_clr+0x625/0xfc0
[ 68.955429][ T5316] end_report+0x78/0x160
[ 68.957267][ T5316] kasan_report+0x129/0x150
[ 68.959325][ T5316] ? change_page_attr_set_clr+0x625/0xfc0
[ 68.961923][ T5316] change_page_attr_set_clr+0x625/0xfc0
[ 68.964163][ T5316] ? __pfx_change_page_attr_set_clr+0x10/0x10
[ 68.966887][ T5316] ? __pfx_pagerange_is_ram_callback+0x10/0x10
[ 68.969682][ T5316] ? memtype_reserve+0x874/0xb30
[ 68.971890][ T5316] ? __pfx___ww_mutex_lock+0x10/0x10
[ 68.974255][ T5316] _set_pages_array+0x145/0x270
[ 68.976341][ T5316] drm_gem_shmem_get_pages_locked+0x2d0/0x440
[ 68.979014][ T5316] ? __pfx_drm_gem_shmem_get_pages_locked+0x10/0x10
[ 68.981955][ T5316] ? ww_mutex_lock+0x3f/0x1c0
[ 68.983924][ T5316] drm_gem_shmem_mmap+0x193/0x460
[ 68.986026][ T5316] drm_gem_mmap_obj+0x18a/0x4e0
[ 68.988137][ T5316] drm_gem_mmap+0x384/0x640
[ 68.990075][ T5316] ? __pfx_drm_gem_mmap+0x10/0x10
[ 68.992273][ T5316] ? __mas_set_range+0x12f/0x3c0
[ 68.994501][ T5316] mmap_region+0x18b4/0x2110
[ 68.996538][ T5316] ? __pfx_mmap_region+0x10/0x10
[ 68.998665][ T5316] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10
[ 69.001521][ T5316] ? bpf_lsm_mmap_addr+0x9/0x20
[ 69.003719][ T5316] ? security_mmap_addr+0x71/0x270
[ 69.005990][ T5316] ? shmem_mapping+0xd/0x50
[ 69.008147][ T5316] ? memfd_check_seals_mmap+0xc5/0x200
[ 69.010844][ T5316] do_mmap+0xc45/0x10d0
[ 69.012944][ T5316] ? __pfx_do_mmap+0x10/0x10
[ 69.015294][ T5316] ? down_write_killable+0x178/0x230
[ 69.017633][ T5316] ? __pfx_down_write_killable+0x10/0x10
[ 69.020101][ T5316] ? common_file_perm+0x1b5/0x230
[ 69.022482][ T5316] vm_mmap_pgoff+0x2a6/0x4d0
[ 69.024651][ T5316] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 69.026912][ T5316] ? __fget_files+0x2a/0x420
[ 69.028897][ T5316] ? __fget_files+0x2a/0x420
[ 69.030957][ T5316] ? __fget_files+0x2a/0x420
[ 69.032995][ T5316] ksys_mmap_pgoff+0x51f/0x760
[ 69.035133][ T5316] do_syscall_64+0xfa/0xfa0
[ 69.037132][ T5316] ? lockdep_hardirqs_on+0x9c/0x150
[ 69.039399][ T5316] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.041996][ T5316] ? clear_bhb_loop+0x60/0xb0
[ 69.043979][ T5316] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.046541][ T5316] RIP: 0033:0x7fd7c5b8eec9
[ 69.048622][ T5316] 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 a8 ff ff ff f7 d8 64 89 01 48
[ 69.058545][ T5316] RSP: 002b:00007fd7c6996038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 69.062230][ T5316] RAX: ffffffffffffffda RBX: 00007fd7c5de5fa0 RCX: 00007fd7c5b8eec9
[ 69.065647][ T5316] RDX: 0000000000000004 RSI: 0000000000004000 RDI: 0000200000001000
[ 69.069083][ T5316] RBP: 00007fd7c5c11f91 R08: 0000000000000004 R09: 0000000100000000
[ 69.072454][ T5316] R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
[ 69.075954][ T5316] R13: 00007fd7c5de6038 R14: 00007fd7c5de5fa0 R15: 00007ffe8deebc38
[ 69.079387][ T5316]
[ 69.081071][ T5316] Kernel Offset: disabled
[ 69.082981][ T5316] Rebooting in 86400 seconds..