Date
May 15, 2025, 10:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.987033] ================================================================== [ 17.987245] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 17.987298] Write of size 16 at addr fff00000c5ccd280 by task kunit_try_catch/166 [ 17.987415] [ 17.987581] CPU: 1 UID: 0 PID: 166 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 17.987667] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.987708] Hardware name: linux,dummy-virt (DT) [ 17.987766] Call trace: [ 17.987790] show_stack+0x20/0x38 (C) [ 17.987875] dump_stack_lvl+0x8c/0xd0 [ 17.987942] print_report+0x118/0x608 [ 17.988008] kasan_report+0xdc/0x128 [ 17.988140] __asan_report_store16_noabort+0x20/0x30 [ 17.988214] kmalloc_oob_16+0x3a0/0x3f8 [ 17.988263] kunit_try_run_case+0x170/0x3f0 [ 17.988447] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.988510] kthread+0x328/0x630 [ 17.988555] ret_from_fork+0x10/0x20 [ 17.988602] [ 17.988619] Allocated by task 166: [ 17.988655] kasan_save_stack+0x3c/0x68 [ 17.988695] kasan_save_track+0x20/0x40 [ 17.988730] kasan_save_alloc_info+0x40/0x58 [ 17.988776] __kasan_kmalloc+0xd4/0xd8 [ 17.988811] __kmalloc_cache_noprof+0x15c/0x3c0 [ 17.988847] kmalloc_oob_16+0xb4/0x3f8 [ 17.988881] kunit_try_run_case+0x170/0x3f0 [ 17.988915] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.988955] kthread+0x328/0x630 [ 17.988989] ret_from_fork+0x10/0x20 [ 17.989196] [ 17.989379] The buggy address belongs to the object at fff00000c5ccd280 [ 17.989379] which belongs to the cache kmalloc-16 of size 16 [ 17.989464] The buggy address is located 0 bytes inside of [ 17.989464] allocated 13-byte region [fff00000c5ccd280, fff00000c5ccd28d) [ 17.989603] [ 17.989625] The buggy address belongs to the physical page: [ 17.989758] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105ccd [ 17.989863] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.990122] page_type: f5(slab) [ 17.990277] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 17.990430] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 17.990627] page dumped because: kasan: bad access detected [ 17.990882] [ 17.990964] Memory state around the buggy address: [ 17.991085] fff00000c5ccd180: 00 02 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 17.991130] fff00000c5ccd200: fa fb fc fc fa fb fc fc 00 04 fc fc fa fb fc fc [ 17.991534] >fff00000c5ccd280: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 17.991622] ^ [ 17.991735] fff00000c5ccd300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.991804] fff00000c5ccd380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.991866] ==================================================================
[ 14.036681] ================================================================== [ 14.037276] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 14.038346] Write of size 16 at addr ffff8881022a3460 by task kunit_try_catch/184 [ 14.039025] [ 14.039200] CPU: 1 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 14.039313] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.039350] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.039388] Call Trace: [ 14.039417] <TASK> [ 14.039451] dump_stack_lvl+0x73/0xb0 [ 14.039519] print_report+0xd1/0x650 [ 14.039589] ? __virt_addr_valid+0x1db/0x2d0 [ 14.039629] ? kmalloc_oob_16+0x452/0x4a0 [ 14.039664] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.039693] ? kmalloc_oob_16+0x452/0x4a0 [ 14.039713] kasan_report+0x141/0x180 [ 14.039734] ? kmalloc_oob_16+0x452/0x4a0 [ 14.039759] __asan_report_store16_noabort+0x1b/0x30 [ 14.039778] kmalloc_oob_16+0x452/0x4a0 [ 14.039798] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 14.039819] ? __schedule+0x10cc/0x2b60 [ 14.039840] ? __pfx_read_tsc+0x10/0x10 [ 14.039861] ? ktime_get_ts64+0x86/0x230 [ 14.039884] kunit_try_run_case+0x1a5/0x480 [ 14.039909] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.039929] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.039950] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.039972] ? __kthread_parkme+0x82/0x180 [ 14.039993] ? preempt_count_sub+0x50/0x80 [ 14.040016] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.040037] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.040058] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.040078] kthread+0x337/0x6f0 [ 14.040096] ? trace_preempt_on+0x20/0xc0 [ 14.040119] ? __pfx_kthread+0x10/0x10 [ 14.040139] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.040158] ? calculate_sigpending+0x7b/0xa0 [ 14.040180] ? __pfx_kthread+0x10/0x10 [ 14.040200] ret_from_fork+0x116/0x1d0 [ 14.040217] ? __pfx_kthread+0x10/0x10 [ 14.040260] ret_from_fork_asm+0x1a/0x30 [ 14.040292] </TASK> [ 14.040304] [ 14.048761] Allocated by task 184: [ 14.049057] kasan_save_stack+0x45/0x70 [ 14.049385] kasan_save_track+0x18/0x40 [ 14.049686] kasan_save_alloc_info+0x3b/0x50 [ 14.050007] __kasan_kmalloc+0xb7/0xc0 [ 14.050853] __kmalloc_cache_noprof+0x189/0x420 [ 14.051212] kmalloc_oob_16+0xa8/0x4a0 [ 14.051704] kunit_try_run_case+0x1a5/0x480 [ 14.052056] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.052318] kthread+0x337/0x6f0 [ 14.052784] ret_from_fork+0x116/0x1d0 [ 14.053031] ret_from_fork_asm+0x1a/0x30 [ 14.053357] [ 14.053707] The buggy address belongs to the object at ffff8881022a3460 [ 14.053707] which belongs to the cache kmalloc-16 of size 16 [ 14.054346] The buggy address is located 0 bytes inside of [ 14.054346] allocated 13-byte region [ffff8881022a3460, ffff8881022a346d) [ 14.055363] [ 14.055808] The buggy address belongs to the physical page: [ 14.056970] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1022a3 [ 14.057290] flags: 0x200000000000000(node=0|zone=2) [ 14.057922] page_type: f5(slab) [ 14.058318] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 14.058874] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 14.059100] page dumped because: kasan: bad access detected [ 14.059484] [ 14.059637] Memory state around the buggy address: [ 14.059881] ffff8881022a3300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 14.060158] ffff8881022a3380: 00 02 fc fc 00 02 fc fc fa fb fc fc fa fb fc fc [ 14.060994] >ffff8881022a3400: 00 05 fc fc 00 04 fc fc fa fb fc fc 00 05 fc fc [ 14.061534] ^ [ 14.062014] ffff8881022a3480: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.062882] ffff8881022a3500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.063169] ==================================================================