Date
March 19, 2025, 10:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 34.311864] ================================================================== [ 34.312019] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 34.312819] Write of size 16 at addr fff00000c6818b69 by task kunit_try_catch/180 [ 34.313185] [ 34.313464] CPU: 1 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.14.0-rc7-next-20250319 #1 PREEMPT [ 34.313848] Tainted: [B]=BAD_PAGE, [N]=TEST [ 34.314274] Hardware name: linux,dummy-virt (DT) [ 34.314398] Call trace: [ 34.314471] show_stack+0x20/0x38 (C) [ 34.314623] dump_stack_lvl+0x8c/0xd0 [ 34.314817] print_report+0x118/0x5f0 [ 34.314978] kasan_report+0xc8/0x118 [ 34.315134] kasan_check_range+0x100/0x1a8 [ 34.315370] __asan_memset+0x34/0x78 [ 34.315813] kmalloc_oob_memset_16+0x150/0x2f8 [ 34.316124] kunit_try_run_case+0x14c/0x3d0 [ 34.316629] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.317102] kthread+0x318/0x618 [ 34.317489] ret_from_fork+0x10/0x20 [ 34.317637] [ 34.319114] Allocated by task 180: [ 34.319212] kasan_save_stack+0x3c/0x68 [ 34.319335] kasan_save_track+0x20/0x40 [ 34.319444] kasan_save_alloc_info+0x40/0x58 [ 34.319562] __kasan_kmalloc+0xd4/0xd8 [ 34.319671] __kmalloc_cache_noprof+0x15c/0x3c0 [ 34.319785] kmalloc_oob_memset_16+0xb0/0x2f8 [ 34.319901] kunit_try_run_case+0x14c/0x3d0 [ 34.320012] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.320175] kthread+0x318/0x618 [ 34.320427] ret_from_fork+0x10/0x20 [ 34.320614] [ 34.320743] The buggy address belongs to the object at fff00000c6818b00 [ 34.320743] which belongs to the cache kmalloc-128 of size 128 [ 34.320930] The buggy address is located 105 bytes inside of [ 34.320930] allocated 120-byte region [fff00000c6818b00, fff00000c6818b78) [ 34.321218] [ 34.321481] The buggy address belongs to the physical page: [ 34.323412] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106818 [ 34.323589] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 34.324524] page_type: f5(slab) [ 34.324631] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 34.324806] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 34.324939] page dumped because: kasan: bad access detected [ 34.325036] [ 34.325117] Memory state around the buggy address: [ 34.325216] fff00000c6818a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.325353] fff00000c6818a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.325488] >fff00000c6818b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 34.325604] ^ [ 34.325727] fff00000c6818b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.325856] fff00000c6818c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.325973] ==================================================================
[ 21.991494] ================================================================== [ 21.993249] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 21.994088] Write of size 16 at addr ffff888103210369 by task kunit_try_catch/199 [ 21.995283] [ 21.995467] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.14.0-rc7-next-20250319 #1 PREEMPT(voluntary) [ 21.995601] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.995653] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.995706] Call Trace: [ 21.995738] <TASK> [ 21.995773] dump_stack_lvl+0x73/0xb0 [ 21.995853] print_report+0xd1/0x660 [ 21.995919] ? __virt_addr_valid+0x1db/0x2d0 [ 21.996049] ? kasan_complete_mode_report_info+0x2a/0x200 [ 21.996140] kasan_report+0x104/0x140 [ 21.996203] ? kmalloc_oob_memset_16+0x166/0x330 [ 21.996267] ? kmalloc_oob_memset_16+0x166/0x330 [ 21.996344] kasan_check_range+0x10c/0x1c0 [ 21.996411] __asan_memset+0x27/0x50 [ 21.996467] kmalloc_oob_memset_16+0x166/0x330 [ 21.996561] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 21.996652] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 21.996759] kunit_try_run_case+0x1b2/0x490 [ 21.996806] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.996838] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.996870] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.996902] ? __kthread_parkme+0x82/0x160 [ 21.996934] ? preempt_count_sub+0x50/0x80 [ 21.996970] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.997004] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.997037] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.997070] kthread+0x323/0x710 [ 21.997099] ? trace_preempt_on+0x20/0xc0 [ 21.997185] ? __pfx_kthread+0x10/0x10 [ 21.997275] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.997310] ? calculate_sigpending+0x7b/0xa0 [ 21.997343] ? __pfx_kthread+0x10/0x10 [ 21.997375] ret_from_fork+0x41/0x80 [ 21.997409] ? __pfx_kthread+0x10/0x10 [ 21.997441] ret_from_fork_asm+0x1a/0x30 [ 21.997489] </TASK> [ 21.997504] [ 22.011432] Allocated by task 199: [ 22.011703] kasan_save_stack+0x3d/0x60 [ 22.012162] kasan_save_track+0x18/0x40 [ 22.012572] kasan_save_alloc_info+0x3b/0x50 [ 22.013469] __kasan_kmalloc+0xb7/0xc0 [ 22.014235] __kmalloc_cache_noprof+0x183/0x410 [ 22.014822] kmalloc_oob_memset_16+0xac/0x330 [ 22.015208] kunit_try_run_case+0x1b2/0x490 [ 22.015665] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.016349] kthread+0x323/0x710 [ 22.016613] ret_from_fork+0x41/0x80 [ 22.017056] ret_from_fork_asm+0x1a/0x30 [ 22.017401] [ 22.017613] The buggy address belongs to the object at ffff888103210300 [ 22.017613] which belongs to the cache kmalloc-128 of size 128 [ 22.018709] The buggy address is located 105 bytes inside of [ 22.018709] allocated 120-byte region [ffff888103210300, ffff888103210378) [ 22.019928] [ 22.020178] The buggy address belongs to the physical page: [ 22.020962] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103210 [ 22.021426] flags: 0x200000000000000(node=0|zone=2) [ 22.022214] page_type: f5(slab) [ 22.022736] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 22.023424] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 22.024458] page dumped because: kasan: bad access detected [ 22.024993] [ 22.025179] Memory state around the buggy address: [ 22.025452] ffff888103210200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.025813] ffff888103210280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.026465] >ffff888103210300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 22.027089] ^ [ 22.028522] ffff888103210380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.029096] ffff888103210400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.029784] ==================================================================