Date
Dec. 6, 2024, 3:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.851125] ================================================================== [ 29.852499] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 29.853317] Read of size 1 at addr fff00000c5b517ff by task kunit_try_catch/127 [ 29.854350] [ 29.855077] CPU: 0 UID: 0 PID: 127 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241206 #1 [ 29.856558] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.857235] Hardware name: linux,dummy-virt (DT) [ 29.857874] Call trace: [ 29.858692] show_stack+0x20/0x38 (C) [ 29.859259] dump_stack_lvl+0x8c/0xd0 [ 29.859846] print_report+0x118/0x5e0 [ 29.860475] kasan_report+0xc8/0x118 [ 29.861057] __asan_report_load1_noabort+0x20/0x30 [ 29.861757] kmalloc_oob_left+0x2ec/0x320 [ 29.862598] kunit_try_run_case+0x14c/0x3d0 [ 29.863247] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.864037] kthread+0x24c/0x2d0 [ 29.864760] ret_from_fork+0x10/0x20 [ 29.865334] [ 29.865693] Allocated by task 28: [ 29.866552] kasan_save_stack+0x3c/0x68 [ 29.867163] kasan_save_track+0x20/0x40 [ 29.867721] kasan_save_alloc_info+0x40/0x58 [ 29.868335] __kasan_kmalloc+0xd4/0xd8 [ 29.868908] __kmalloc_node_track_caller_noprof+0x184/0x4b8 [ 29.869576] kstrdup+0x54/0xc8 [ 29.870132] devtmpfs_work_loop+0x384/0x590 [ 29.871118] devtmpfsd+0x50/0x58 [ 29.871660] kthread+0x24c/0x2d0 [ 29.872158] ret_from_fork+0x10/0x20 [ 29.872728] [ 29.873131] Freed by task 28: [ 29.873690] kasan_save_stack+0x3c/0x68 [ 29.874797] kasan_save_track+0x20/0x40 [ 29.875693] kasan_save_free_info+0x4c/0x78 [ 29.876256] __kasan_slab_free+0x6c/0x98 [ 29.876773] kfree+0x114/0x3c8 [ 29.877319] devtmpfs_work_loop+0x498/0x590 [ 29.878288] devtmpfsd+0x50/0x58 [ 29.878839] kthread+0x24c/0x2d0 [ 29.879371] ret_from_fork+0x10/0x20 [ 29.879981] [ 29.880361] The buggy address belongs to the object at fff00000c5b517e0 [ 29.880361] which belongs to the cache kmalloc-16 of size 16 [ 29.881656] The buggy address is located 15 bytes to the right of [ 29.881656] allocated 16-byte region [fff00000c5b517e0, fff00000c5b517f0) [ 29.882957] [ 29.883305] The buggy address belongs to the physical page: [ 29.884062] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105b51 [ 29.884974] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.885856] page_type: f5(slab) [ 29.886422] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 29.887811] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 29.888659] page dumped because: kasan: bad access detected [ 29.889302] [ 29.890003] Memory state around the buggy address: [ 29.890834] fff00000c5b51680: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 29.891616] fff00000c5b51700: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 29.892422] >fff00000c5b51780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 29.893229] ^ [ 29.894049] fff00000c5b51800: 00 07 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.894788] fff00000c5b51880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.895651] ==================================================================
[ 21.921404] ================================================================== [ 21.923519] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x363/0x3c0 [ 21.925867] Read of size 1 at addr ffff888101b3cc5f by task kunit_try_catch/146 [ 21.927555] [ 21.927791] CPU: 0 UID: 0 PID: 146 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241206 #1 [ 21.929216] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.930179] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.932130] Call Trace: [ 21.932737] <TASK> [ 21.933590] dump_stack_lvl+0x73/0xb0 [ 21.934531] print_report+0xd1/0x640 [ 21.934994] ? __virt_addr_valid+0x1db/0x2d0 [ 21.936190] ? kasan_complete_mode_report_info+0x2a/0x200 [ 21.936686] kasan_report+0x102/0x140 [ 21.937216] ? kmalloc_oob_left+0x363/0x3c0 [ 21.937628] ? kmalloc_oob_left+0x363/0x3c0 [ 21.939030] __asan_report_load1_noabort+0x18/0x20 [ 21.940371] kmalloc_oob_left+0x363/0x3c0 [ 21.941135] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 21.942724] ? __schedule+0xc70/0x27e0 [ 21.943479] ? __pfx_read_tsc+0x10/0x10 [ 21.943969] ? ktime_get_ts64+0x86/0x230 [ 21.945066] kunit_try_run_case+0x1b3/0x490 [ 21.945609] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.946133] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 21.946606] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.948319] ? __kthread_parkme+0x82/0x160 [ 21.949034] ? preempt_count_sub+0x50/0x80 [ 21.949446] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.950162] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.951054] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.951962] kthread+0x257/0x310 [ 21.952895] ? __pfx_kthread+0x10/0x10 [ 21.953516] ret_from_fork+0x41/0x80 [ 21.953846] ? __pfx_kthread+0x10/0x10 [ 21.955057] ret_from_fork_asm+0x1a/0x30 [ 21.955393] </TASK> [ 21.956305] [ 21.956553] Allocated by task 1: [ 21.957528] kasan_save_stack+0x3d/0x60 [ 21.958233] kasan_save_track+0x18/0x40 [ 21.959160] kasan_save_alloc_info+0x3b/0x50 [ 21.959869] __kasan_kmalloc+0xb7/0xc0 [ 21.960671] __kmalloc_node_track_caller_noprof+0x1c6/0x500 [ 21.961196] kvasprintf+0xc6/0x150 [ 21.961671] __kthread_create_on_node+0x18c/0x3a0 [ 21.963098] kthread_create_on_node+0xa8/0xe0 [ 21.963688] create_worker+0x3c8/0x7a0 [ 21.964645] alloc_unbound_pwq+0x8ea/0xdb0 [ 21.965064] apply_wqattrs_prepare+0x332/0xd40 [ 21.966026] apply_workqueue_attrs_locked+0x4d/0xa0 [ 21.967266] alloc_workqueue+0xcc4/0x1ad0 [ 21.967587] latency_fsnotify_init+0x1b/0x50 [ 21.967878] do_one_initcall+0xb5/0x370 [ 21.968171] kernel_init_freeable+0x425/0x6f0 [ 21.968455] kernel_init+0x23/0x1e0 [ 21.968717] ret_from_fork+0x41/0x80 [ 21.971011] ret_from_fork_asm+0x1a/0x30 [ 21.971488] [ 21.971876] The buggy address belongs to the object at ffff888101b3cc40 [ 21.971876] which belongs to the cache kmalloc-16 of size 16 [ 21.973757] The buggy address is located 18 bytes to the right of [ 21.973757] allocated 13-byte region [ffff888101b3cc40, ffff888101b3cc4d) [ 21.976217] [ 21.976899] The buggy address belongs to the physical page: [ 21.977381] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101b3c [ 21.978567] flags: 0x200000000000000(node=0|zone=2) [ 21.979245] page_type: f5(slab) [ 21.979578] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 21.980012] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 21.980391] page dumped because: kasan: bad access detected [ 21.981538] [ 21.982576] Memory state around the buggy address: [ 21.983441] ffff888101b3cb00: 00 05 fc fc 00 02 fc fc 00 03 fc fc fa fb fc fc [ 21.984919] ffff888101b3cb80: 00 02 fc fc 00 05 fc fc 00 02 fc fc 00 02 fc fc [ 21.985657] >ffff888101b3cc00: 00 02 fc fc 00 02 fc fc 00 05 fc fc 00 07 fc fc [ 21.986325] ^ [ 21.987723] ffff888101b3cc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.988483] ffff888101b3cd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.989292] ==================================================================