Date
May 15, 2025, 10:38 a.m.
Environment | |
---|---|
qemu-arm64 | |
qemu-x86_64 |
[ 18.032217] ================================================================== [ 18.032271] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 18.032318] Write of size 2 at addr fff00000c68f1377 by task kunit_try_catch/172 [ 18.032798] [ 18.033058] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 18.033415] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.033690] Hardware name: linux,dummy-virt (DT) [ 18.033778] Call trace: [ 18.034119] show_stack+0x20/0x38 (C) [ 18.034354] dump_stack_lvl+0x8c/0xd0 [ 18.034717] print_report+0x118/0x608 [ 18.034892] kasan_report+0xdc/0x128 [ 18.035056] kasan_check_range+0x100/0x1a8 [ 18.035152] __asan_memset+0x34/0x78 [ 18.035355] kmalloc_oob_memset_2+0x150/0x2f8 [ 18.035493] kunit_try_run_case+0x170/0x3f0 [ 18.035541] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.035741] kthread+0x328/0x630 [ 18.035909] ret_from_fork+0x10/0x20 [ 18.036120] [ 18.036367] Allocated by task 172: [ 18.036538] kasan_save_stack+0x3c/0x68 [ 18.036625] kasan_save_track+0x20/0x40 [ 18.036797] kasan_save_alloc_info+0x40/0x58 [ 18.036954] __kasan_kmalloc+0xd4/0xd8 [ 18.037034] __kmalloc_cache_noprof+0x15c/0x3c0 [ 18.037273] kmalloc_oob_memset_2+0xb0/0x2f8 [ 18.037334] kunit_try_run_case+0x170/0x3f0 [ 18.037370] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.037411] kthread+0x328/0x630 [ 18.037583] ret_from_fork+0x10/0x20 [ 18.037656] [ 18.037686] The buggy address belongs to the object at fff00000c68f1300 [ 18.037686] which belongs to the cache kmalloc-128 of size 128 [ 18.037974] The buggy address is located 119 bytes inside of [ 18.037974] allocated 120-byte region [fff00000c68f1300, fff00000c68f1378) [ 18.038194] [ 18.038261] The buggy address belongs to the physical page: [ 18.038660] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1068f1 [ 18.038739] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.038964] page_type: f5(slab) [ 18.039342] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.039431] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.039722] page dumped because: kasan: bad access detected [ 18.039795] [ 18.039862] Memory state around the buggy address: [ 18.040300] fff00000c68f1200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.040386] fff00000c68f1280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.040826] >fff00000c68f1300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.040923] ^ [ 18.040993] fff00000c68f1380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.041369] fff00000c68f1400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.041535] ==================================================================
[ 14.143160] ================================================================== [ 14.143881] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 14.144082] Write of size 2 at addr ffff8881022f9d77 by task kunit_try_catch/190 [ 14.144216] [ 14.144361] CPU: 1 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 14.144450] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.144470] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.144504] Call Trace: [ 14.144529] <TASK> [ 14.144562] dump_stack_lvl+0x73/0xb0 [ 14.144611] print_report+0xd1/0x650 [ 14.144647] ? __virt_addr_valid+0x1db/0x2d0 [ 14.144682] ? kmalloc_oob_memset_2+0x166/0x330 [ 14.145153] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.145206] ? kmalloc_oob_memset_2+0x166/0x330 [ 14.145256] kasan_report+0x141/0x180 [ 14.145302] ? kmalloc_oob_memset_2+0x166/0x330 [ 14.145390] kasan_check_range+0x10c/0x1c0 [ 14.145607] __asan_memset+0x27/0x50 [ 14.145672] kmalloc_oob_memset_2+0x166/0x330 [ 14.145710] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 14.145734] ? __schedule+0x10cc/0x2b60 [ 14.145758] ? __pfx_read_tsc+0x10/0x10 [ 14.145779] ? ktime_get_ts64+0x86/0x230 [ 14.145803] kunit_try_run_case+0x1a5/0x480 [ 14.145827] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.145847] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.145870] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.145890] ? __kthread_parkme+0x82/0x180 [ 14.145911] ? preempt_count_sub+0x50/0x80 [ 14.145934] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.145957] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.145978] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.145999] kthread+0x337/0x6f0 [ 14.146017] ? trace_preempt_on+0x20/0xc0 [ 14.146041] ? __pfx_kthread+0x10/0x10 [ 14.146061] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.146080] ? calculate_sigpending+0x7b/0xa0 [ 14.146104] ? __pfx_kthread+0x10/0x10 [ 14.146124] ret_from_fork+0x116/0x1d0 [ 14.146142] ? __pfx_kthread+0x10/0x10 [ 14.146161] ret_from_fork_asm+0x1a/0x30 [ 14.146192] </TASK> [ 14.146204] [ 14.157858] Allocated by task 190: [ 14.158079] kasan_save_stack+0x45/0x70 [ 14.158657] kasan_save_track+0x18/0x40 [ 14.158914] kasan_save_alloc_info+0x3b/0x50 [ 14.159097] __kasan_kmalloc+0xb7/0xc0 [ 14.159345] __kmalloc_cache_noprof+0x189/0x420 [ 14.160257] kmalloc_oob_memset_2+0xac/0x330 [ 14.160882] kunit_try_run_case+0x1a5/0x480 [ 14.161285] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.161664] kthread+0x337/0x6f0 [ 14.162028] ret_from_fork+0x116/0x1d0 [ 14.162411] ret_from_fork_asm+0x1a/0x30 [ 14.162844] [ 14.163011] The buggy address belongs to the object at ffff8881022f9d00 [ 14.163011] which belongs to the cache kmalloc-128 of size 128 [ 14.164183] The buggy address is located 119 bytes inside of [ 14.164183] allocated 120-byte region [ffff8881022f9d00, ffff8881022f9d78) [ 14.164741] [ 14.164918] The buggy address belongs to the physical page: [ 14.165357] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1022f9 [ 14.165987] flags: 0x200000000000000(node=0|zone=2) [ 14.166439] page_type: f5(slab) [ 14.166868] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 14.167316] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 14.168125] page dumped because: kasan: bad access detected [ 14.168785] [ 14.168990] Memory state around the buggy address: [ 14.169233] ffff8881022f9c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.169599] ffff8881022f9c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.170258] >ffff8881022f9d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 14.170879] ^ [ 14.171235] ffff8881022f9d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.171527] ffff8881022f9e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.171992] ==================================================================