Date
July 17, 2025, 10:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.596039] ================================================================== [ 29.596120] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 29.596229] Write of size 8 at addr fff00000c9b1e171 by task kunit_try_catch/207 [ 29.596283] [ 29.596317] CPU: 1 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT [ 29.596878] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.596909] Hardware name: linux,dummy-virt (DT) [ 29.597343] Call trace: [ 29.597499] show_stack+0x20/0x38 (C) [ 29.597602] dump_stack_lvl+0x8c/0xd0 [ 29.597909] print_report+0x118/0x5d0 [ 29.597985] kasan_report+0xdc/0x128 [ 29.598399] kasan_check_range+0x100/0x1a8 [ 29.598714] __asan_memset+0x34/0x78 [ 29.598917] kmalloc_oob_memset_8+0x150/0x2f8 [ 29.599010] kunit_try_run_case+0x170/0x3f0 [ 29.599148] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.599223] kthread+0x328/0x630 [ 29.599603] ret_from_fork+0x10/0x20 [ 29.599762] [ 29.599839] Allocated by task 207: [ 29.600008] kasan_save_stack+0x3c/0x68 [ 29.600169] kasan_save_track+0x20/0x40 [ 29.600209] kasan_save_alloc_info+0x40/0x58 [ 29.600271] __kasan_kmalloc+0xd4/0xd8 [ 29.600637] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.600763] kmalloc_oob_memset_8+0xb0/0x2f8 [ 29.600868] kunit_try_run_case+0x170/0x3f0 [ 29.601018] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.601183] kthread+0x328/0x630 [ 29.601221] ret_from_fork+0x10/0x20 [ 29.601256] [ 29.601305] The buggy address belongs to the object at fff00000c9b1e100 [ 29.601305] which belongs to the cache kmalloc-128 of size 128 [ 29.601664] The buggy address is located 113 bytes inside of [ 29.601664] allocated 120-byte region [fff00000c9b1e100, fff00000c9b1e178) [ 29.601814] [ 29.601901] The buggy address belongs to the physical page: [ 29.602017] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b1e [ 29.602116] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.602208] page_type: f5(slab) [ 29.602372] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.602630] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.602939] page dumped because: kasan: bad access detected [ 29.602995] [ 29.603097] Memory state around the buggy address: [ 29.603181] fff00000c9b1e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.603304] fff00000c9b1e080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.603408] >fff00000c9b1e100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.603525] ^ [ 29.603606] fff00000c9b1e180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.603682] fff00000c9b1e200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.603991] ==================================================================
[ 25.803130] ================================================================== [ 25.803702] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 25.804004] Write of size 8 at addr ffff88810553d771 by task kunit_try_catch/225 [ 25.804280] [ 25.804380] CPU: 0 UID: 0 PID: 225 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250717 #1 PREEMPT(voluntary) [ 25.804424] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.804435] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.804455] Call Trace: [ 25.804466] <TASK> [ 25.804479] dump_stack_lvl+0x73/0xb0 [ 25.804507] print_report+0xd1/0x610 [ 25.804528] ? __virt_addr_valid+0x1db/0x2d0 [ 25.804550] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.804570] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.804594] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.804615] kasan_report+0x141/0x180 [ 25.804636] ? kmalloc_oob_memset_8+0x166/0x330 [ 25.804663] kasan_check_range+0x10c/0x1c0 [ 25.804685] __asan_memset+0x27/0x50 [ 25.804708] kmalloc_oob_memset_8+0x166/0x330 [ 25.804729] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 25.804751] ? __schedule+0x10c6/0x2b60 [ 25.804773] ? __pfx_read_tsc+0x10/0x10 [ 25.804793] ? ktime_get_ts64+0x86/0x230 [ 25.804816] kunit_try_run_case+0x1a5/0x480 [ 25.804838] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.804859] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.804881] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.804904] ? __kthread_parkme+0x82/0x180 [ 25.804927] ? preempt_count_sub+0x50/0x80 [ 25.804949] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.804972] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.804994] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.805016] kthread+0x337/0x6f0 [ 25.805034] ? trace_preempt_on+0x20/0xc0 [ 25.805057] ? __pfx_kthread+0x10/0x10 [ 25.805170] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.805199] ? calculate_sigpending+0x7b/0xa0 [ 25.805222] ? __pfx_kthread+0x10/0x10 [ 25.805355] ret_from_fork+0x116/0x1d0 [ 25.805384] ? __pfx_kthread+0x10/0x10 [ 25.805406] ret_from_fork_asm+0x1a/0x30 [ 25.805437] </TASK> [ 25.805448] [ 25.814231] Allocated by task 225: [ 25.814457] kasan_save_stack+0x45/0x70 [ 25.814651] kasan_save_track+0x18/0x40 [ 25.814801] kasan_save_alloc_info+0x3b/0x50 [ 25.814996] __kasan_kmalloc+0xb7/0xc0 [ 25.815158] __kmalloc_cache_noprof+0x189/0x420 [ 25.815496] kmalloc_oob_memset_8+0xac/0x330 [ 25.815683] kunit_try_run_case+0x1a5/0x480 [ 25.815870] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.816095] kthread+0x337/0x6f0 [ 25.816327] ret_from_fork+0x116/0x1d0 [ 25.816491] ret_from_fork_asm+0x1a/0x30 [ 25.816675] [ 25.816749] The buggy address belongs to the object at ffff88810553d700 [ 25.816749] which belongs to the cache kmalloc-128 of size 128 [ 25.817121] The buggy address is located 113 bytes inside of [ 25.817121] allocated 120-byte region [ffff88810553d700, ffff88810553d778) [ 25.817789] [ 25.817872] The buggy address belongs to the physical page: [ 25.818041] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10553d [ 25.818415] flags: 0x200000000000000(node=0|zone=2) [ 25.818658] page_type: f5(slab) [ 25.818818] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.819172] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.819503] page dumped because: kasan: bad access detected [ 25.819858] [ 25.819929] Memory state around the buggy address: [ 25.820125] ffff88810553d600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.820630] ffff88810553d680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.820922] >ffff88810553d700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.821161] ^ [ 25.821364] ffff88810553d780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.821668] ffff88810553d800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.822061] ==================================================================