[ 722.450913][ T5910] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 238ms [ 722.460566][ T5910] gfs2: fsid=syz:syz.0: jid=0: Done [ 722.466657][ T7546] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 722.560468][ T7546] syz.0.121: attempt to access beyond end of device [ 722.560468][ T7546] loop0: rw=12288, sector=2251799813685248, nr_sectors = 8 limit=32768 [ 722.576882][ T7546] ===================================================== [ 722.585211][ T7546] BUG: KMSAN: uninit-value in gfs2_quota_init+0x21b2/0x2800 [ 722.593241][ T7546] gfs2_quota_init+0x21b2/0x2800 [ 722.598394][ T7546] gfs2_make_fs_rw+0x1d5/0x460 [ 722.603519][ T7546] gfs2_fill_super+0x3d2e/0x3f50 [ 722.608704][ T7546] get_tree_bdev_flags+0x6e6/0x920 [ 722.614188][ T7546] get_tree_bdev+0x38/0x50 [ 722.618836][ T7546] gfs2_get_tree+0x57/0x350 [ 722.623777][ T7546] vfs_get_tree+0xb3/0x5c0 [ 722.628389][ T7546] do_new_mount+0x738/0x1610 [ 722.633537][ T7546] path_mount+0x6db/0x1e90 [ 722.638179][ T7546] __se_sys_mount+0x6eb/0x7d0 [ 722.643265][ T7546] __x64_sys_mount+0xe4/0x150 [ 722.648173][ T7546] x64_sys_call+0xfa7/0x3db0 [ 722.653175][ T7546] do_syscall_64+0xd9/0x210 [ 722.657982][ T7546] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 722.664271][ T7546] [ 722.666741][ T7546] Uninit was created at: [ 722.671484][ T7546] __alloc_frozen_pages_noprof+0x689/0xf00 [ 722.677537][ T7546] alloc_pages_mpol+0x328/0x860 [ 722.683900][ T7546] folio_alloc_noprof+0x109/0x360 [ 722.689180][ T7546] filemap_alloc_folio_noprof+0x9d/0x420 [ 722.695749][ T7546] __filemap_get_folio+0xb45/0x1930 [ 722.701416][ T7546] gfs2_getbuf+0x246/0xce0 [ 722.706095][ T7546] gfs2_meta_ra+0x13c/0x720 [ 722.710850][ T7546] gfs2_quota_init+0x759/0x2800 [ 722.716135][ T7546] gfs2_make_fs_rw+0x1d5/0x460 [ 722.721330][ T7546] gfs2_fill_super+0x3d2e/0x3f50 [ 722.726526][ T7546] get_tree_bdev_flags+0x6e6/0x920 [ 722.732059][ T7546] get_tree_bdev+0x38/0x50 [ 722.736704][ T7546] gfs2_get_tree+0x57/0x350 [ 722.741620][ T7546] vfs_get_tree+0xb3/0x5c0 [ 722.746276][ T7546] do_new_mount+0x738/0x1610 [ 722.751456][ T7546] path_mount+0x6db/0x1e90 [ 722.756101][ T7546] __se_sys_mount+0x6eb/0x7d0 [ 722.761186][ T7546] __x64_sys_mount+0xe4/0x150 [ 722.766063][ T7546] x64_sys_call+0xfa7/0x3db0 [ 722.771147][ T7546] do_syscall_64+0xd9/0x210 [ 722.775866][ T7546] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 722.783335][ T7546] [ 722.785852][ T7546] CPU: 1 UID: 0 PID: 7546 Comm: syz.0.121 Tainted: G W 6.16.0-rc7-syzkaller-g89be9a83ccf1 #0 PREEMPT(none) [ 722.799708][ T7546] Tainted: [W]=WARN [ 722.803812][ T7546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 722.814652][ T7546] ===================================================== [ 722.821919][ T7546] Disabling lock debugging due to kernel taint [ 722.828247][ T7546] Kernel panic - not syncing: kmsan.panic set ... [ 722.834809][ T7546] CPU: 1 UID: 0 PID: 7546 Comm: syz.0.121 Tainted: G B W 6.16.0-rc7-syzkaller-g89be9a83ccf1 #0 PREEMPT(none) [ 722.847972][ T7546] Tainted: [B]=BAD_PAGE, [W]=WARN [ 722.853091][ T7546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 722.863284][ T7546] Call Trace: [ 722.866652][ T7546] [ 722.869672][ T7546] __dump_stack+0x26/0x30 [ 722.874217][ T7546] dump_stack_lvl+0x53/0x270 [ 722.879001][ T7546] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 722.885003][ T7546] dump_stack+0x1e/0x25 [ 722.889431][ T7546] panic+0x4bd/0xd50 [ 722.893586][ T7546] kmsan_report+0x31c/0x320 [ 722.898258][ T7546] ? __msan_warning+0x1b/0x30 [ 722.903094][ T7546] ? gfs2_quota_init+0x21b2/0x2800 [ 722.908434][ T7546] ? gfs2_make_fs_rw+0x1d5/0x460 [ 722.913558][ T7546] ? gfs2_fill_super+0x3d2e/0x3f50 [ 722.918847][ T7546] ? get_tree_bdev_flags+0x6e6/0x920 [ 722.924300][ T7546] ? get_tree_bdev+0x38/0x50 [ 722.929035][ T7546] ? gfs2_get_tree+0x57/0x350 [ 722.933868][ T7546] ? vfs_get_tree+0xb3/0x5c0 [ 722.938619][ T7546] ? do_new_mount+0x738/0x1610 [ 722.943559][ T7546] ? path_mount+0x6db/0x1e90 [ 722.948341][ T7546] ? __se_sys_mount+0x6eb/0x7d0 [ 722.953395][ T7546] ? __x64_sys_mount+0xe4/0x150 [ 722.958444][ T7546] ? x64_sys_call+0xfa7/0x3db0 [ 722.963424][ T7546] ? do_syscall_64+0xd9/0x210 [ 722.968279][ T7546] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 722.974507][ T7546] ? submit_bio+0x5a9/0x5d0 [ 722.979185][ T7546] ? submit_bh_wbc+0x7e0/0x870 [ 722.984115][ T7546] ? kmsan_get_metadata+0xfb/0x160 [ 722.989600][ T7546] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 722.995639][ T7546] ? gfs2_meta_ra+0x68b/0x720 [ 723.000459][ T7546] ? kmsan_get_metadata+0xfb/0x160 [ 723.005737][ T7546] __msan_warning+0x1b/0x30 [ 723.010383][ T7546] gfs2_quota_init+0x21b2/0x2800 [ 723.015487][ T7546] ? kmsan_internal_set_shadow_origin+0x79/0x110 [ 723.022032][ T7546] gfs2_make_fs_rw+0x1d5/0x460 [ 723.026979][ T7546] gfs2_fill_super+0x3d2e/0x3f50 [ 723.032116][ T7546] ? init_locking+0xed/0x500 [ 723.037014][ T7546] get_tree_bdev_flags+0x6e6/0x920 [ 723.042374][ T7546] ? __pfx_gfs2_fill_super+0x10/0x10 [ 723.047870][ T7546] ? __pfx_gfs2_fill_super+0x10/0x10 [ 723.053319][ T7546] ? __pfx_gfs2_get_tree+0x10/0x10 [ 723.058588][ T7546] get_tree_bdev+0x38/0x50 [ 723.063201][ T7546] gfs2_get_tree+0x57/0x350 [ 723.067892][ T7546] ? __pfx_gfs2_get_tree+0x10/0x10 [ 723.073178][ T7546] vfs_get_tree+0xb3/0x5c0 [ 723.077784][ T7546] ? mount_capable+0x99/0x100 [ 723.082770][ T7546] do_new_mount+0x738/0x1610 [ 723.087577][ T7546] ? kmsan_get_metadata+0xfb/0x160 [ 723.092846][ T7546] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 723.098835][ T7546] path_mount+0x6db/0x1e90 [ 723.103415][ T7546] ? user_path_at+0x32d/0x3d0 [ 723.108358][ T7546] __se_sys_mount+0x6eb/0x7d0 [ 723.113219][ T7546] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 723.119490][ T7546] __x64_sys_mount+0xe4/0x150 [ 723.124340][ T7546] x64_sys_call+0xfa7/0x3db0 [ 723.129141][ T7546] do_syscall_64+0xd9/0x210 [ 723.133798][ T7546] ? irqentry_exit+0x16/0x60 [ 723.138526][ T7546] ? clear_bhb_loop+0x40/0x90 [ 723.143390][ T7546] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 723.149478][ T7546] RIP: 0033:0x7fcce397ffba [ 723.154080][ T7546] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 723.173867][ T7546] RSP: 002b:00007fcce47a0e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 723.182558][ T7546] RAX: ffffffffffffffda RBX: 00007fcce47a0ef0 RCX: 00007fcce397ffba [ 723.190724][ T7546] RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 00007fcce47a0eb0 [ 723.198822][ T7546] RBP: 0000000020000080 R08: 00007fcce47a0ef0 R09: 0000000000000000 [ 723.207024][ T7546] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000200000c0 [ 723.215152][ T7546] R13: 00007fcce47a0eb0 R14: 0000000000012551 R15: 0000000020000000 [ 723.223291][ T7546] [ 723.226966][ T7546] Kernel Offset: disabled [ 723.231400][ T7546] Rebooting in 86400 seconds..