Date
July 9, 2025, 1:08 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.282882] ================================================================== [ 29.282950] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 29.283008] Write of size 16 at addr fff00000c592c880 by task kunit_try_catch/198 [ 29.283071] [ 29.283108] CPU: 0 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250709 #1 PREEMPT [ 29.283775] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.284026] Hardware name: linux,dummy-virt (DT) [ 29.284070] Call trace: [ 29.284093] show_stack+0x20/0x38 (C) [ 29.284148] dump_stack_lvl+0x8c/0xd0 [ 29.284617] print_report+0x118/0x5d0 [ 29.284727] kasan_report+0xdc/0x128 [ 29.285017] __asan_report_store16_noabort+0x20/0x30 [ 29.285297] kmalloc_oob_16+0x3a0/0x3f8 [ 29.285544] kunit_try_run_case+0x170/0x3f0 [ 29.285773] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.285925] kthread+0x328/0x630 [ 29.285974] ret_from_fork+0x10/0x20 [ 29.286519] [ 29.286540] Allocated by task 198: [ 29.286700] kasan_save_stack+0x3c/0x68 [ 29.286880] kasan_save_track+0x20/0x40 [ 29.286925] kasan_save_alloc_info+0x40/0x58 [ 29.286960] __kasan_kmalloc+0xd4/0xd8 [ 29.286996] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.287435] kmalloc_oob_16+0xb4/0x3f8 [ 29.287688] kunit_try_run_case+0x170/0x3f0 [ 29.287734] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.287786] kthread+0x328/0x630 [ 29.287818] ret_from_fork+0x10/0x20 [ 29.288019] [ 29.288288] The buggy address belongs to the object at fff00000c592c880 [ 29.288288] which belongs to the cache kmalloc-16 of size 16 [ 29.288349] The buggy address is located 0 bytes inside of [ 29.288349] allocated 13-byte region [fff00000c592c880, fff00000c592c88d) [ 29.288409] [ 29.288429] The buggy address belongs to the physical page: [ 29.288691] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10592c [ 29.288979] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.289207] page_type: f5(slab) [ 29.289250] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 29.290045] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 29.290104] page dumped because: kasan: bad access detected [ 29.290329] [ 29.290399] Memory state around the buggy address: [ 29.290435] fff00000c592c780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 29.290478] fff00000c592c800: fa fb fc fc fa fb fc fc 00 04 fc fc fa fb fc fc [ 29.291006] >fff00000c592c880: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 29.291271] ^ [ 29.291435] fff00000c592c900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.291756] fff00000c592c980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.291863] ==================================================================
[ 24.097203] ================================================================== [ 24.097644] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 24.098200] Write of size 16 at addr ffff88810484f2e0 by task kunit_try_catch/216 [ 24.098536] [ 24.098623] CPU: 1 UID: 0 PID: 216 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) [ 24.098772] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 24.098813] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.098834] Call Trace: [ 24.098848] <TASK> [ 24.098869] dump_stack_lvl+0x73/0xb0 [ 24.098948] print_report+0xd1/0x610 [ 24.098973] ? __virt_addr_valid+0x1db/0x2d0 [ 24.099021] ? kmalloc_oob_16+0x452/0x4a0 [ 24.099042] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.099067] ? kmalloc_oob_16+0x452/0x4a0 [ 24.099088] kasan_report+0x141/0x180 [ 24.099109] ? kmalloc_oob_16+0x452/0x4a0 [ 24.099133] __asan_report_store16_noabort+0x1b/0x30 [ 24.099157] kmalloc_oob_16+0x452/0x4a0 [ 24.099177] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 24.099198] ? __schedule+0x10cc/0x2b60 [ 24.099221] ? __pfx_read_tsc+0x10/0x10 [ 24.099243] ? ktime_get_ts64+0x86/0x230 [ 24.099269] kunit_try_run_case+0x1a5/0x480 [ 24.099292] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.099311] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.099335] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.099358] ? __kthread_parkme+0x82/0x180 [ 24.099399] ? preempt_count_sub+0x50/0x80 [ 24.099422] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.099443] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.099468] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.099492] kthread+0x337/0x6f0 [ 24.099512] ? trace_preempt_on+0x20/0xc0 [ 24.099535] ? __pfx_kthread+0x10/0x10 [ 24.099574] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.099596] ? calculate_sigpending+0x7b/0xa0 [ 24.099620] ? __pfx_kthread+0x10/0x10 [ 24.099641] ret_from_fork+0x116/0x1d0 [ 24.099659] ? __pfx_kthread+0x10/0x10 [ 24.099679] ret_from_fork_asm+0x1a/0x30 [ 24.099722] </TASK> [ 24.099734] [ 24.107129] Allocated by task 216: [ 24.107255] kasan_save_stack+0x45/0x70 [ 24.107400] kasan_save_track+0x18/0x40 [ 24.107623] kasan_save_alloc_info+0x3b/0x50 [ 24.107841] __kasan_kmalloc+0xb7/0xc0 [ 24.108022] __kmalloc_cache_noprof+0x189/0x420 [ 24.108389] kmalloc_oob_16+0xa8/0x4a0 [ 24.108530] kunit_try_run_case+0x1a5/0x480 [ 24.108760] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.109202] kthread+0x337/0x6f0 [ 24.109392] ret_from_fork+0x116/0x1d0 [ 24.109528] ret_from_fork_asm+0x1a/0x30 [ 24.109752] [ 24.109957] The buggy address belongs to the object at ffff88810484f2e0 [ 24.109957] which belongs to the cache kmalloc-16 of size 16 [ 24.110457] The buggy address is located 0 bytes inside of [ 24.110457] allocated 13-byte region [ffff88810484f2e0, ffff88810484f2ed) [ 24.111023] [ 24.111142] The buggy address belongs to the physical page: [ 24.111341] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10484f [ 24.111568] flags: 0x200000000000000(node=0|zone=2) [ 24.111751] page_type: f5(slab) [ 24.112132] raw: 0200000000000000 ffff888100041640 dead000000000100 dead000000000122 [ 24.112478] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 24.112923] page dumped because: kasan: bad access detected [ 24.113091] [ 24.113152] Memory state around the buggy address: [ 24.113349] ffff88810484f180: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.113682] ffff88810484f200: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.113920] >ffff88810484f280: fa fb fc fc fa fb fc fc 00 00 fc fc 00 05 fc fc [ 24.114116] ^ [ 24.114493] ffff88810484f300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.114815] ffff88810484f380: fa fb fc fc fa fb fc fc 00 00 fc fc fa fb fc fc [ 24.115238] ==================================================================