Date
July 5, 2025, 5:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.273095] ================================================================== [ 18.273517] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 18.273601] Write of size 16 at addr fff00000c5cb3680 by task kunit_try_catch/166 [ 18.273653] [ 18.273695] CPU: 1 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.273772] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.273798] Hardware name: linux,dummy-virt (DT) [ 18.274054] Call trace: [ 18.274294] show_stack+0x20/0x38 (C) [ 18.274355] dump_stack_lvl+0x8c/0xd0 [ 18.274400] print_report+0x118/0x608 [ 18.274509] kasan_report+0xdc/0x128 [ 18.274612] __asan_report_store16_noabort+0x20/0x30 [ 18.275053] kmalloc_oob_16+0x3a0/0x3f8 [ 18.275290] kunit_try_run_case+0x170/0x3f0 [ 18.275566] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.275693] kthread+0x328/0x630 [ 18.275759] ret_from_fork+0x10/0x20 [ 18.276299] [ 18.276408] Allocated by task 166: [ 18.276537] kasan_save_stack+0x3c/0x68 [ 18.276704] kasan_save_track+0x20/0x40 [ 18.276755] kasan_save_alloc_info+0x40/0x58 [ 18.276794] __kasan_kmalloc+0xd4/0xd8 [ 18.276830] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.276880] kmalloc_oob_16+0xb4/0x3f8 [ 18.276920] kunit_try_run_case+0x170/0x3f0 [ 18.276956] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.276997] kthread+0x328/0x630 [ 18.277029] ret_from_fork+0x10/0x20 [ 18.277064] [ 18.277099] The buggy address belongs to the object at fff00000c5cb3680 [ 18.277099] which belongs to the cache kmalloc-16 of size 16 [ 18.277154] The buggy address is located 0 bytes inside of [ 18.277154] allocated 13-byte region [fff00000c5cb3680, fff00000c5cb368d) [ 18.277223] [ 18.277242] The buggy address belongs to the physical page: [ 18.277278] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105cb3 [ 18.277329] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.277374] page_type: f5(slab) [ 18.277412] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 18.277460] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 18.277498] page dumped because: kasan: bad access detected [ 18.277537] [ 18.277554] Memory state around the buggy address: [ 18.277593] fff00000c5cb3580: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 18.277634] fff00000c5cb3600: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 18.277683] >fff00000c5cb3680: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 18.277726] ^ [ 18.277752] fff00000c5cb3700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.277802] fff00000c5cb3780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.277846] ==================================================================
[ 11.595190] ================================================================== [ 11.595709] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 11.596095] Write of size 16 at addr ffff88810274c1c0 by task kunit_try_catch/184 [ 11.596581] [ 11.596807] CPU: 1 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.596853] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.596865] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.596886] Call Trace: [ 11.596898] <TASK> [ 11.596912] dump_stack_lvl+0x73/0xb0 [ 11.596940] print_report+0xd1/0x650 [ 11.596962] ? __virt_addr_valid+0x1db/0x2d0 [ 11.596983] ? kmalloc_oob_16+0x452/0x4a0 [ 11.597003] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.597024] ? kmalloc_oob_16+0x452/0x4a0 [ 11.597045] kasan_report+0x141/0x180 [ 11.597066] ? kmalloc_oob_16+0x452/0x4a0 [ 11.597090] __asan_report_store16_noabort+0x1b/0x30 [ 11.597110] kmalloc_oob_16+0x452/0x4a0 [ 11.597131] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 11.597152] ? __schedule+0x10cc/0x2b60 [ 11.597173] ? __pfx_read_tsc+0x10/0x10 [ 11.597194] ? ktime_get_ts64+0x86/0x230 [ 11.597217] kunit_try_run_case+0x1a5/0x480 [ 11.597241] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.597262] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.597284] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.597306] ? __kthread_parkme+0x82/0x180 [ 11.597325] ? preempt_count_sub+0x50/0x80 [ 11.597347] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.597370] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.597397] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.597419] kthread+0x337/0x6f0 [ 11.597438] ? trace_preempt_on+0x20/0xc0 [ 11.597471] ? __pfx_kthread+0x10/0x10 [ 11.597491] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.597511] ? calculate_sigpending+0x7b/0xa0 [ 11.597535] ? __pfx_kthread+0x10/0x10 [ 11.597555] ret_from_fork+0x116/0x1d0 [ 11.597573] ? __pfx_kthread+0x10/0x10 [ 11.597593] ret_from_fork_asm+0x1a/0x30 [ 11.597622] </TASK> [ 11.597633] [ 11.604357] Allocated by task 184: [ 11.604536] kasan_save_stack+0x45/0x70 [ 11.604719] kasan_save_track+0x18/0x40 [ 11.604888] kasan_save_alloc_info+0x3b/0x50 [ 11.605037] __kasan_kmalloc+0xb7/0xc0 [ 11.605171] __kmalloc_cache_noprof+0x189/0x420 [ 11.605401] kmalloc_oob_16+0xa8/0x4a0 [ 11.605600] kunit_try_run_case+0x1a5/0x480 [ 11.605889] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.606143] kthread+0x337/0x6f0 [ 11.606294] ret_from_fork+0x116/0x1d0 [ 11.606430] ret_from_fork_asm+0x1a/0x30 [ 11.606638] [ 11.606732] The buggy address belongs to the object at ffff88810274c1c0 [ 11.606732] which belongs to the cache kmalloc-16 of size 16 [ 11.607318] The buggy address is located 0 bytes inside of [ 11.607318] allocated 13-byte region [ffff88810274c1c0, ffff88810274c1cd) [ 11.607756] [ 11.607854] The buggy address belongs to the physical page: [ 11.608109] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10274c [ 11.608435] flags: 0x200000000000000(node=0|zone=2) [ 11.608619] page_type: f5(slab) [ 11.608740] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 11.608972] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 11.609340] page dumped because: kasan: bad access detected [ 11.609606] [ 11.609710] Memory state around the buggy address: [ 11.609936] ffff88810274c080: 00 03 fc fc fa fb fc fc 00 02 fc fc 00 05 fc fc [ 11.610259] ffff88810274c100: 00 02 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 11.610541] >ffff88810274c180: fa fb fc fc fa fb fc fc 00 05 fc fc 00 00 fc fc [ 11.610753] ^ [ 11.611085] ffff88810274c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.611401] ffff88810274c280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.611774] ==================================================================