Date
May 15, 2025, 10:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.052676] ================================================================== [ 18.052758] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 18.052888] Write of size 4 at addr fff00000c68f1475 by task kunit_try_catch/174 [ 18.053040] [ 18.053075] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 18.053171] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.053197] Hardware name: linux,dummy-virt (DT) [ 18.053225] Call trace: [ 18.053370] show_stack+0x20/0x38 (C) [ 18.053430] dump_stack_lvl+0x8c/0xd0 [ 18.053476] print_report+0x118/0x608 [ 18.053529] kasan_report+0xdc/0x128 [ 18.053573] kasan_check_range+0x100/0x1a8 [ 18.053620] __asan_memset+0x34/0x78 [ 18.053664] kmalloc_oob_memset_4+0x150/0x300 [ 18.053708] kunit_try_run_case+0x170/0x3f0 [ 18.053759] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.053810] kthread+0x328/0x630 [ 18.054336] ret_from_fork+0x10/0x20 [ 18.054563] [ 18.054634] Allocated by task 174: [ 18.054683] kasan_save_stack+0x3c/0x68 [ 18.054991] kasan_save_track+0x20/0x40 [ 18.055077] kasan_save_alloc_info+0x40/0x58 [ 18.055218] __kasan_kmalloc+0xd4/0xd8 [ 18.055346] __kmalloc_cache_noprof+0x15c/0x3c0 [ 18.055434] kmalloc_oob_memset_4+0xb0/0x300 [ 18.055586] kunit_try_run_case+0x170/0x3f0 [ 18.055625] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.055695] kthread+0x328/0x630 [ 18.056016] ret_from_fork+0x10/0x20 [ 18.056128] [ 18.056205] The buggy address belongs to the object at fff00000c68f1400 [ 18.056205] which belongs to the cache kmalloc-128 of size 128 [ 18.056364] The buggy address is located 117 bytes inside of [ 18.056364] allocated 120-byte region [fff00000c68f1400, fff00000c68f1478) [ 18.056525] [ 18.056548] The buggy address belongs to the physical page: [ 18.056607] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1068f1 [ 18.056693] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.056868] page_type: f5(slab) [ 18.057195] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.057332] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.057413] page dumped because: kasan: bad access detected [ 18.057445] [ 18.057470] Memory state around the buggy address: [ 18.057554] fff00000c68f1300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.057597] fff00000c68f1380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.057671] >fff00000c68f1400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.057723] ^ [ 18.057768] fff00000c68f1480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.057809] fff00000c68f1500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.057854] ==================================================================
[ 14.178086] ================================================================== [ 14.178539] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 14.179323] Write of size 4 at addr ffff8881022f9e75 by task kunit_try_catch/192 [ 14.179874] [ 14.180130] CPU: 1 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 14.180236] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.180261] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.180300] Call Trace: [ 14.180355] <TASK> [ 14.180391] dump_stack_lvl+0x73/0xb0 [ 14.180512] print_report+0xd1/0x650 [ 14.180562] ? __virt_addr_valid+0x1db/0x2d0 [ 14.180614] ? kmalloc_oob_memset_4+0x166/0x330 [ 14.180655] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.180687] ? kmalloc_oob_memset_4+0x166/0x330 [ 14.180709] kasan_report+0x141/0x180 [ 14.180732] ? kmalloc_oob_memset_4+0x166/0x330 [ 14.180758] kasan_check_range+0x10c/0x1c0 [ 14.180781] __asan_memset+0x27/0x50 [ 14.180800] kmalloc_oob_memset_4+0x166/0x330 [ 14.180822] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 14.180844] ? __schedule+0x10cc/0x2b60 [ 14.180867] ? __pfx_read_tsc+0x10/0x10 [ 14.180888] ? ktime_get_ts64+0x86/0x230 [ 14.180913] kunit_try_run_case+0x1a5/0x480 [ 14.180939] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.180960] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.180982] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.181003] ? __kthread_parkme+0x82/0x180 [ 14.181025] ? preempt_count_sub+0x50/0x80 [ 14.181050] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.181072] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.181095] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.181117] kthread+0x337/0x6f0 [ 14.181136] ? trace_preempt_on+0x20/0xc0 [ 14.181159] ? __pfx_kthread+0x10/0x10 [ 14.181179] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.181199] ? calculate_sigpending+0x7b/0xa0 [ 14.181242] ? __pfx_kthread+0x10/0x10 [ 14.181287] ret_from_fork+0x116/0x1d0 [ 14.181314] ? __pfx_kthread+0x10/0x10 [ 14.181362] ret_from_fork_asm+0x1a/0x30 [ 14.181407] </TASK> [ 14.181421] [ 14.191920] Allocated by task 192: [ 14.192062] kasan_save_stack+0x45/0x70 [ 14.192209] kasan_save_track+0x18/0x40 [ 14.192385] kasan_save_alloc_info+0x3b/0x50 [ 14.192785] __kasan_kmalloc+0xb7/0xc0 [ 14.193132] __kmalloc_cache_noprof+0x189/0x420 [ 14.193479] kmalloc_oob_memset_4+0xac/0x330 [ 14.193849] kunit_try_run_case+0x1a5/0x480 [ 14.194047] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.194259] kthread+0x337/0x6f0 [ 14.194547] ret_from_fork+0x116/0x1d0 [ 14.194857] ret_from_fork_asm+0x1a/0x30 [ 14.195173] [ 14.196485] The buggy address belongs to the object at ffff8881022f9e00 [ 14.196485] which belongs to the cache kmalloc-128 of size 128 [ 14.197351] The buggy address is located 117 bytes inside of [ 14.197351] allocated 120-byte region [ffff8881022f9e00, ffff8881022f9e78) [ 14.198339] [ 14.198516] The buggy address belongs to the physical page: [ 14.198721] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1022f9 [ 14.198967] flags: 0x200000000000000(node=0|zone=2) [ 14.199364] page_type: f5(slab) [ 14.199655] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 14.200104] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 14.200805] page dumped because: kasan: bad access detected [ 14.201176] [ 14.201279] Memory state around the buggy address: [ 14.201470] ffff8881022f9d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.202464] ffff8881022f9d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.202987] >ffff8881022f9e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 14.203300] ^ [ 14.203886] ffff8881022f9e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.204243] ffff8881022f9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.204907] ==================================================================