Date
June 25, 2025, 8:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 26.295751] ================================================================== [ 26.295823] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 26.296241] Read of size 1 at addr fff00000c7901000 by task kunit_try_catch/152 [ 26.296550] [ 26.296611] CPU: 1 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 26.296730] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.296758] Hardware name: linux,dummy-virt (DT) [ 26.296788] Call trace: [ 26.296811] show_stack+0x20/0x38 (C) [ 26.296862] dump_stack_lvl+0x8c/0xd0 [ 26.297479] print_report+0x118/0x608 [ 26.297560] kasan_report+0xdc/0x128 [ 26.297794] __asan_report_load1_noabort+0x20/0x30 [ 26.297976] kmalloc_node_oob_right+0x2f4/0x330 [ 26.298108] kunit_try_run_case+0x170/0x3f0 [ 26.298160] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.298239] kthread+0x328/0x630 [ 26.298281] ret_from_fork+0x10/0x20 [ 26.298629] [ 26.299165] Allocated by task 152: [ 26.299411] kasan_save_stack+0x3c/0x68 [ 26.299627] kasan_save_track+0x20/0x40 [ 26.299704] kasan_save_alloc_info+0x40/0x58 [ 26.299775] __kasan_kmalloc+0xd4/0xd8 [ 26.299811] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 26.299853] kmalloc_node_oob_right+0xbc/0x330 [ 26.299953] kunit_try_run_case+0x170/0x3f0 [ 26.300239] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.300283] kthread+0x328/0x630 [ 26.300313] ret_from_fork+0x10/0x20 [ 26.300464] [ 26.300641] The buggy address belongs to the object at fff00000c7900000 [ 26.300641] which belongs to the cache kmalloc-4k of size 4096 [ 26.300729] The buggy address is located 0 bytes to the right of [ 26.300729] allocated 4096-byte region [fff00000c7900000, fff00000c7901000) [ 26.300904] [ 26.300932] The buggy address belongs to the physical page: [ 26.301005] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107900 [ 26.301254] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 26.301528] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 26.301630] page_type: f5(slab) [ 26.301670] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 26.301717] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 26.301772] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 26.301818] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 26.301865] head: 0bfffe0000000003 ffffc1ffc31e4001 00000000ffffffff 00000000ffffffff [ 26.301911] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 26.301997] page dumped because: kasan: bad access detected [ 26.302027] [ 26.302045] Memory state around the buggy address: [ 26.302082] fff00000c7900f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.302240] fff00000c7900f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.302320] >fff00000c7901000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.302368] ^ [ 26.302403] fff00000c7901080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.302443] fff00000c7901100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.302479] ==================================================================
[ 21.277829] ================================================================== [ 21.278381] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 21.278686] Read of size 1 at addr ffff8881039d5000 by task kunit_try_catch/169 [ 21.278979] [ 21.279197] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 21.279246] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.279258] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.279278] Call Trace: [ 21.279291] <TASK> [ 21.279309] dump_stack_lvl+0x73/0xb0 [ 21.279337] print_report+0xd1/0x650 [ 21.279358] ? __virt_addr_valid+0x1db/0x2d0 [ 21.279381] ? kmalloc_node_oob_right+0x369/0x3c0 [ 21.279402] ? kasan_complete_mode_report_info+0x2a/0x200 [ 21.279426] ? kmalloc_node_oob_right+0x369/0x3c0 [ 21.279447] kasan_report+0x141/0x180 [ 21.279467] ? kmalloc_node_oob_right+0x369/0x3c0 [ 21.279493] __asan_report_load1_noabort+0x18/0x20 [ 21.279515] kmalloc_node_oob_right+0x369/0x3c0 [ 21.279537] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 21.279559] ? __schedule+0x10cc/0x2b60 [ 21.279583] ? __pfx_read_tsc+0x10/0x10 [ 21.279604] ? ktime_get_ts64+0x86/0x230 [ 21.279628] kunit_try_run_case+0x1a5/0x480 [ 21.279653] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.279674] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.279694] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.279717] ? __kthread_parkme+0x82/0x180 [ 21.279736] ? preempt_count_sub+0x50/0x80 [ 21.279758] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.279781] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.279802] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.279824] kthread+0x337/0x6f0 [ 21.279842] ? trace_preempt_on+0x20/0xc0 [ 21.279864] ? __pfx_kthread+0x10/0x10 [ 21.279883] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.279904] ? calculate_sigpending+0x7b/0xa0 [ 21.279927] ? __pfx_kthread+0x10/0x10 [ 21.280005] ret_from_fork+0x116/0x1d0 [ 21.280026] ? __pfx_kthread+0x10/0x10 [ 21.280045] ret_from_fork_asm+0x1a/0x30 [ 21.280075] </TASK> [ 21.280085] [ 21.289042] Allocated by task 169: [ 21.289228] kasan_save_stack+0x45/0x70 [ 21.289688] kasan_save_track+0x18/0x40 [ 21.289913] kasan_save_alloc_info+0x3b/0x50 [ 21.290234] __kasan_kmalloc+0xb7/0xc0 [ 21.290372] __kmalloc_cache_node_noprof+0x188/0x420 [ 21.290602] kmalloc_node_oob_right+0xab/0x3c0 [ 21.290789] kunit_try_run_case+0x1a5/0x480 [ 21.291048] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.291269] kthread+0x337/0x6f0 [ 21.291424] ret_from_fork+0x116/0x1d0 [ 21.291620] ret_from_fork_asm+0x1a/0x30 [ 21.291762] [ 21.291917] The buggy address belongs to the object at ffff8881039d4000 [ 21.291917] which belongs to the cache kmalloc-4k of size 4096 [ 21.292438] The buggy address is located 0 bytes to the right of [ 21.292438] allocated 4096-byte region [ffff8881039d4000, ffff8881039d5000) [ 21.292912] [ 21.293114] The buggy address belongs to the physical page: [ 21.293415] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039d0 [ 21.293910] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.294190] flags: 0x200000000000040(head|node=0|zone=2) [ 21.294573] page_type: f5(slab) [ 21.294704] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 21.295018] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 21.295479] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 21.295727] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 21.296113] head: 0200000000000003 ffffea00040e7401 00000000ffffffff 00000000ffffffff [ 21.296521] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 21.296827] page dumped because: kasan: bad access detected [ 21.297133] [ 21.297233] Memory state around the buggy address: [ 21.297424] ffff8881039d4f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.297688] ffff8881039d4f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.298124] >ffff8881039d5000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.298410] ^ [ 21.298571] ffff8881039d5080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.298873] ffff8881039d5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.299267] ==================================================================