Date
July 22, 2025, 2:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.285502] ================================================================== [ 17.286130] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 17.286340] Write of size 16 at addr fff00000c6fb0769 by task kunit_try_catch/180 [ 17.286467] [ 17.286558] CPU: 0 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT [ 17.286671] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.286697] Hardware name: linux,dummy-virt (DT) [ 17.286734] Call trace: [ 17.286845] show_stack+0x20/0x38 (C) [ 17.286909] dump_stack_lvl+0x8c/0xd0 [ 17.286969] print_report+0x118/0x5d0 [ 17.287174] kasan_report+0xdc/0x128 [ 17.287353] kasan_check_range+0x100/0x1a8 [ 17.287555] __asan_memset+0x34/0x78 [ 17.287683] kmalloc_oob_memset_16+0x150/0x2f8 [ 17.287759] kunit_try_run_case+0x170/0x3f0 [ 17.287877] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.288075] kthread+0x328/0x630 [ 17.288277] ret_from_fork+0x10/0x20 [ 17.288358] [ 17.288378] Allocated by task 180: [ 17.288405] kasan_save_stack+0x3c/0x68 [ 17.288442] kasan_save_track+0x20/0x40 [ 17.288483] kasan_save_alloc_info+0x40/0x58 [ 17.288520] __kasan_kmalloc+0xd4/0xd8 [ 17.288564] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.288602] kmalloc_oob_memset_16+0xb0/0x2f8 [ 17.288640] kunit_try_run_case+0x170/0x3f0 [ 17.288678] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.288717] kthread+0x328/0x630 [ 17.288758] ret_from_fork+0x10/0x20 [ 17.288794] [ 17.288814] The buggy address belongs to the object at fff00000c6fb0700 [ 17.288814] which belongs to the cache kmalloc-128 of size 128 [ 17.288875] The buggy address is located 105 bytes inside of [ 17.288875] allocated 120-byte region [fff00000c6fb0700, fff00000c6fb0778) [ 17.288943] [ 17.288963] The buggy address belongs to the physical page: [ 17.288998] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106fb0 [ 17.289064] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.289112] page_type: f5(slab) [ 17.289162] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.289221] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.289259] page dumped because: kasan: bad access detected [ 17.289308] [ 17.289623] Memory state around the buggy address: [ 17.289892] fff00000c6fb0600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.289962] fff00000c6fb0680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.290012] >fff00000c6fb0700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.290064] ^ [ 17.290156] fff00000c6fb0780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.290247] fff00000c6fb0800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.290305] ==================================================================
[ 11.253541] ================================================================== [ 11.254205] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 11.254626] Write of size 16 at addr ffff8881028ba069 by task kunit_try_catch/198 [ 11.255402] [ 11.255619] CPU: 1 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT(voluntary) [ 11.255670] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.255682] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.255706] Call Trace: [ 11.255719] <TASK> [ 11.255737] dump_stack_lvl+0x73/0xb0 [ 11.255769] print_report+0xd1/0x610 [ 11.255792] ? __virt_addr_valid+0x1db/0x2d0 [ 11.255910] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.255937] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.255960] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.255982] kasan_report+0x141/0x180 [ 11.256004] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.256031] kasan_check_range+0x10c/0x1c0 [ 11.256051] __asan_memset+0x27/0x50 [ 11.256072] kmalloc_oob_memset_16+0x166/0x330 [ 11.256093] ? __kasan_check_write+0x18/0x20 [ 11.256112] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 11.256134] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 11.256156] ? trace_hardirqs_on+0x37/0xe0 [ 11.256181] ? __pfx_read_tsc+0x10/0x10 [ 11.256201] ? ktime_get_ts64+0x86/0x230 [ 11.256239] kunit_try_run_case+0x1a5/0x480 [ 11.256261] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.256281] ? queued_spin_lock_slowpath+0x116/0xb40 [ 11.256302] ? __kthread_parkme+0x82/0x180 [ 11.256325] ? preempt_count_sub+0x50/0x80 [ 11.256351] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.256381] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.256403] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.256426] kthread+0x337/0x6f0 [ 11.256442] ? trace_preempt_on+0x20/0xc0 [ 11.256464] ? __pfx_kthread+0x10/0x10 [ 11.256481] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.256503] ? calculate_sigpending+0x7b/0xa0 [ 11.256525] ? __pfx_kthread+0x10/0x10 [ 11.256543] ret_from_fork+0x41/0x80 [ 11.256562] ? __pfx_kthread+0x10/0x10 [ 11.256579] ret_from_fork_asm+0x1a/0x30 [ 11.256611] </TASK> [ 11.256621] [ 11.266806] Allocated by task 198: [ 11.267088] kasan_save_stack+0x45/0x70 [ 11.267358] kasan_save_track+0x18/0x40 [ 11.267620] kasan_save_alloc_info+0x3b/0x50 [ 11.267983] __kasan_kmalloc+0xb7/0xc0 [ 11.268136] __kmalloc_cache_noprof+0x189/0x420 [ 11.268549] kmalloc_oob_memset_16+0xac/0x330 [ 11.268931] kunit_try_run_case+0x1a5/0x480 [ 11.269259] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.269640] kthread+0x337/0x6f0 [ 11.269777] ret_from_fork+0x41/0x80 [ 11.270099] ret_from_fork_asm+0x1a/0x30 [ 11.270443] [ 11.270520] The buggy address belongs to the object at ffff8881028ba000 [ 11.270520] which belongs to the cache kmalloc-128 of size 128 [ 11.271020] The buggy address is located 105 bytes inside of [ 11.271020] allocated 120-byte region [ffff8881028ba000, ffff8881028ba078) [ 11.272095] [ 11.272195] The buggy address belongs to the physical page: [ 11.272611] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028ba [ 11.273025] flags: 0x200000000000000(node=0|zone=2) [ 11.273379] page_type: f5(slab) [ 11.273554] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.274186] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.274672] page dumped because: kasan: bad access detected [ 11.274918] [ 11.274996] Memory state around the buggy address: [ 11.275215] ffff8881028b9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.275876] ffff8881028b9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.276257] >ffff8881028ba000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.276574] ^ [ 11.277045] ffff8881028ba080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.277354] ffff8881028ba100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.278116] ==================================================================