Date
Nov. 20, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 35.492967] ================================================================== [ 35.494287] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 35.495897] Read of size 1 at addr fff00000c1bb3b5f by task kunit_try_catch/127 [ 35.496753] [ 35.497272] CPU: 0 UID: 0 PID: 127 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 35.498653] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.499152] Hardware name: linux,dummy-virt (DT) [ 35.499763] Call trace: [ 35.500283] show_stack+0x20/0x38 (C) [ 35.500893] dump_stack_lvl+0x8c/0xd0 [ 35.501428] print_report+0x118/0x5e0 [ 35.502026] kasan_report+0xc8/0x118 [ 35.502772] __asan_report_load1_noabort+0x20/0x30 [ 35.503243] kmalloc_oob_left+0x2ec/0x320 [ 35.503671] kunit_try_run_case+0x14c/0x3d0 [ 35.504184] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.504891] kthread+0x24c/0x2d0 [ 35.506031] ret_from_fork+0x10/0x20 [ 35.506613] [ 35.506956] Allocated by task 28: [ 35.507470] kasan_save_stack+0x3c/0x68 [ 35.508066] kasan_save_track+0x20/0x40 [ 35.508657] kasan_save_alloc_info+0x40/0x58 [ 35.510230] __kasan_kmalloc+0xd4/0xd8 [ 35.510779] __kmalloc_node_track_caller_noprof+0x184/0x4b8 [ 35.511502] kstrdup+0x54/0xc8 [ 35.511942] devtmpfs_work_loop+0x384/0x590 [ 35.512520] devtmpfsd+0x50/0x58 [ 35.513017] kthread+0x24c/0x2d0 [ 35.513590] ret_from_fork+0x10/0x20 [ 35.514428] [ 35.514805] Freed by task 28: [ 35.515312] kasan_save_stack+0x3c/0x68 [ 35.515860] kasan_save_track+0x20/0x40 [ 35.516776] kasan_save_free_info+0x4c/0x78 [ 35.517582] __kasan_slab_free+0x6c/0x98 [ 35.518159] kfree+0x114/0x3d0 [ 35.518647] devtmpfs_work_loop+0x498/0x590 [ 35.519165] devtmpfsd+0x50/0x58 [ 35.520371] kthread+0x24c/0x2d0 [ 35.521109] ret_from_fork+0x10/0x20 [ 35.522163] [ 35.522606] The buggy address belongs to the object at fff00000c1bb3b40 [ 35.522606] which belongs to the cache kmalloc-16 of size 16 [ 35.523802] The buggy address is located 15 bytes to the right of [ 35.523802] allocated 16-byte region [fff00000c1bb3b40, fff00000c1bb3b50) [ 35.524946] [ 35.525291] The buggy address belongs to the physical page: [ 35.526867] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101bb3 [ 35.528143] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.528676] page_type: f5(slab) [ 35.529176] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 35.530395] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 35.531235] page dumped because: kasan: bad access detected [ 35.531809] [ 35.532119] Memory state around the buggy address: [ 35.532642] fff00000c1bb3a00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 35.533501] fff00000c1bb3a80: fa fb fc fc fa fb fc fc fa fb fc fc 00 02 fc fc [ 35.534268] >fff00000c1bb3b00: 00 02 fc fc fa fb fc fc fa fb fc fc 00 07 fc fc [ 35.535018] ^ [ 35.535955] fff00000c1bb3b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.537161] fff00000c1bb3c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.538261] ==================================================================
[ 26.703439] ================================================================== [ 26.704342] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x363/0x3c0 [ 26.705306] Read of size 1 at addr ffff8881025fedbf by task kunit_try_catch/145 [ 26.705913] [ 26.706119] CPU: 1 UID: 0 PID: 145 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 26.707564] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.708113] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.708899] Call Trace: [ 26.709356] <TASK> [ 26.709584] dump_stack_lvl+0x73/0xb0 [ 26.710077] print_report+0xd1/0x640 [ 26.710487] ? __virt_addr_valid+0x1db/0x2d0 [ 26.710978] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.711895] kasan_report+0x102/0x140 [ 26.712428] ? kmalloc_oob_left+0x363/0x3c0 [ 26.712819] ? kmalloc_oob_left+0x363/0x3c0 [ 26.713327] __asan_report_load1_noabort+0x18/0x20 [ 26.713848] kmalloc_oob_left+0x363/0x3c0 [ 26.714157] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 26.714646] ? __schedule+0xc3e/0x2790 [ 26.715049] ? __pfx_read_tsc+0x10/0x10 [ 26.715759] ? ktime_get_ts64+0x84/0x230 [ 26.716414] kunit_try_run_case+0x1b3/0x490 [ 26.716983] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.717540] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.717913] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.718257] ? __kthread_parkme+0x82/0x160 [ 26.718904] ? preempt_count_sub+0x50/0x80 [ 26.719384] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.719890] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.720380] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.721410] kthread+0x257/0x310 [ 26.721712] ? __pfx_kthread+0x10/0x10 [ 26.722175] ret_from_fork+0x41/0x80 [ 26.722466] ? __pfx_kthread+0x10/0x10 [ 26.722930] ret_from_fork_asm+0x1a/0x30 [ 26.723553] </TASK> [ 26.723820] [ 26.724006] Allocated by task 1: [ 26.724241] kasan_save_stack+0x3d/0x60 [ 26.724517] kasan_save_track+0x18/0x40 [ 26.724905] kasan_save_alloc_info+0x3b/0x50 [ 26.725448] __kasan_kmalloc+0xb7/0xc0 [ 26.726406] __kmalloc_node_track_caller_noprof+0x1c6/0x500 [ 26.727035] kvasprintf+0xc6/0x150 [ 26.727472] __kthread_create_on_node+0x18c/0x3a0 [ 26.728223] kthread_create_on_node+0xa8/0xe0 [ 26.728632] create_worker+0x3c8/0x7a0 [ 26.728967] alloc_unbound_pwq+0x8ea/0xdb0 [ 26.729360] apply_wqattrs_prepare+0x332/0xd40 [ 26.729802] apply_workqueue_attrs_locked+0x4d/0xa0 [ 26.730593] alloc_workqueue+0xcc4/0x1ad0 [ 26.731002] latency_fsnotify_init+0x1b/0x50 [ 26.731305] do_one_initcall+0xb5/0x370 [ 26.731583] kernel_init_freeable+0x425/0x6f0 [ 26.732098] kernel_init+0x23/0x1e0 [ 26.732571] ret_from_fork+0x41/0x80 [ 26.733379] ret_from_fork_asm+0x1a/0x30 [ 26.734089] [ 26.734516] The buggy address belongs to the object at ffff8881025feda0 [ 26.734516] which belongs to the cache kmalloc-16 of size 16 [ 26.735767] The buggy address is located 18 bytes to the right of [ 26.735767] allocated 13-byte region [ffff8881025feda0, ffff8881025fedad) [ 26.736431] [ 26.736680] The buggy address belongs to the physical page: [ 26.737321] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1025fe [ 26.738159] flags: 0x200000000000000(node=0|zone=2) [ 26.739025] page_type: f5(slab) [ 26.739427] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 26.740355] raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000 [ 26.740812] page dumped because: kasan: bad access detected [ 26.741138] [ 26.741289] Memory state around the buggy address: [ 26.741587] ffff8881025fec80: 00 02 fc fc 00 05 fc fc 00 02 fc fc 00 02 fc fc [ 26.742379] ffff8881025fed00: 00 02 fc fc 00 02 fc fc fa fb fc fc fa fb fc fc [ 26.743175] >ffff8881025fed80: fa fb fc fc 00 05 fc fc 00 07 fc fc fc fc fc fc [ 26.744246] ^ [ 26.744656] ffff8881025fee00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.745527] ffff8881025fee80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.746207] ==================================================================