Date
June 16, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.775910] ================================================================== [ 18.776051] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 18.776184] Write of size 1 at addr fff00000c65adf00 by task kunit_try_catch/153 [ 18.776345] [ 18.776455] CPU: 0 UID: 0 PID: 153 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT [ 18.776819] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.776950] Hardware name: linux,dummy-virt (DT) [ 18.777031] Call trace: [ 18.777103] show_stack+0x20/0x38 (C) [ 18.777253] dump_stack_lvl+0x8c/0xd0 [ 18.777397] print_report+0x118/0x608 [ 18.777539] kasan_report+0xdc/0x128 [ 18.777669] __asan_report_store1_noabort+0x20/0x30 [ 18.777772] kmalloc_big_oob_right+0x2a4/0x2f0 [ 18.777906] kunit_try_run_case+0x170/0x3f0 [ 18.778053] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.778177] kthread+0x328/0x630 [ 18.778276] ret_from_fork+0x10/0x20 [ 18.778389] [ 18.778439] Allocated by task 153: [ 18.778520] kasan_save_stack+0x3c/0x68 [ 18.778636] kasan_save_track+0x20/0x40 [ 18.778767] kasan_save_alloc_info+0x40/0x58 [ 18.778884] __kasan_kmalloc+0xd4/0xd8 [ 18.779075] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.779248] kmalloc_big_oob_right+0xb8/0x2f0 [ 18.779364] kunit_try_run_case+0x170/0x3f0 [ 18.779457] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.779570] kthread+0x328/0x630 [ 18.779654] ret_from_fork+0x10/0x20 [ 18.779747] [ 18.779792] The buggy address belongs to the object at fff00000c65ac000 [ 18.779792] which belongs to the cache kmalloc-8k of size 8192 [ 18.779921] The buggy address is located 0 bytes to the right of [ 18.779921] allocated 7936-byte region [fff00000c65ac000, fff00000c65adf00) [ 18.780074] [ 18.780120] The buggy address belongs to the physical page: [ 18.780195] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065a8 [ 18.780301] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 18.780398] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 18.780516] page_type: f5(slab) [ 18.780639] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 18.780817] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 18.780975] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 18.781117] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 18.781229] head: 0bfffe0000000003 ffffc1ffc3196a01 00000000ffffffff 00000000ffffffff [ 18.781338] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 18.781430] page dumped because: kasan: bad access detected [ 18.781496] [ 18.781532] Memory state around the buggy address: [ 18.781594] fff00000c65ade00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.781680] fff00000c65ade80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.781773] >fff00000c65adf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.781885] ^ [ 18.781956] fff00000c65adf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.782073] fff00000c65ae000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.782198] ==================================================================
[ 10.847756] ================================================================== [ 10.848184] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 10.848430] Write of size 1 at addr ffff888103901f00 by task kunit_try_catch/169 [ 10.848645] [ 10.848733] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) [ 10.848780] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.848791] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.848812] Call Trace: [ 10.848824] <TASK> [ 10.848844] dump_stack_lvl+0x73/0xb0 [ 10.848873] print_report+0xd1/0x650 [ 10.848894] ? __virt_addr_valid+0x1db/0x2d0 [ 10.848917] ? kmalloc_big_oob_right+0x316/0x370 [ 10.848978] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.849000] ? kmalloc_big_oob_right+0x316/0x370 [ 10.849021] kasan_report+0x141/0x180 [ 10.849042] ? kmalloc_big_oob_right+0x316/0x370 [ 10.849067] __asan_report_store1_noabort+0x1b/0x30 [ 10.849090] kmalloc_big_oob_right+0x316/0x370 [ 10.849111] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 10.849133] ? __schedule+0x10cc/0x2b60 [ 10.849155] ? __pfx_read_tsc+0x10/0x10 [ 10.849178] ? ktime_get_ts64+0x86/0x230 [ 10.849203] kunit_try_run_case+0x1a5/0x480 [ 10.849227] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.849248] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.849269] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.849291] ? __kthread_parkme+0x82/0x180 [ 10.849339] ? preempt_count_sub+0x50/0x80 [ 10.849363] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.849405] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.849427] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.849448] kthread+0x337/0x6f0 [ 10.849467] ? trace_preempt_on+0x20/0xc0 [ 10.849491] ? __pfx_kthread+0x10/0x10 [ 10.849510] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.849529] ? calculate_sigpending+0x7b/0xa0 [ 10.849553] ? __pfx_kthread+0x10/0x10 [ 10.849573] ret_from_fork+0x116/0x1d0 [ 10.849591] ? __pfx_kthread+0x10/0x10 [ 10.849611] ret_from_fork_asm+0x1a/0x30 [ 10.849643] </TASK> [ 10.849654] [ 10.862634] Allocated by task 169: [ 10.862945] kasan_save_stack+0x45/0x70 [ 10.863279] kasan_save_track+0x18/0x40 [ 10.863657] kasan_save_alloc_info+0x3b/0x50 [ 10.864025] __kasan_kmalloc+0xb7/0xc0 [ 10.864356] __kmalloc_cache_noprof+0x189/0x420 [ 10.864804] kmalloc_big_oob_right+0xa9/0x370 [ 10.865202] kunit_try_run_case+0x1a5/0x480 [ 10.865706] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.866054] kthread+0x337/0x6f0 [ 10.866174] ret_from_fork+0x116/0x1d0 [ 10.866301] ret_from_fork_asm+0x1a/0x30 [ 10.866576] [ 10.866728] The buggy address belongs to the object at ffff888103900000 [ 10.866728] which belongs to the cache kmalloc-8k of size 8192 [ 10.867831] The buggy address is located 0 bytes to the right of [ 10.867831] allocated 7936-byte region [ffff888103900000, ffff888103901f00) [ 10.868782] [ 10.868856] The buggy address belongs to the physical page: [ 10.869038] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103900 [ 10.869277] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.869974] flags: 0x200000000000040(head|node=0|zone=2) [ 10.870445] page_type: f5(slab) [ 10.870719] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.871428] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.872150] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 10.872876] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 10.873549] head: 0200000000000003 ffffea00040e4001 00000000ffffffff 00000000ffffffff [ 10.873903] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.874130] page dumped because: kasan: bad access detected [ 10.874291] [ 10.874352] Memory state around the buggy address: [ 10.875063] ffff888103901e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.875795] ffff888103901e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.876396] >ffff888103901f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.877210] ^ [ 10.877544] ffff888103901f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.878387] ffff888103902000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.879114] ==================================================================