Date
May 26, 2025, 9:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.161746] ================================================================== [ 18.162895] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 18.163466] Read of size 1 at addr fff00000c79490c8 by task kunit_try_catch/207 [ 18.163616] [ 18.163707] CPU: 0 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT [ 18.163904] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.163959] Hardware name: linux,dummy-virt (DT) [ 18.164020] Call trace: [ 18.164101] show_stack+0x20/0x38 (C) [ 18.164231] dump_stack_lvl+0x8c/0xd0 [ 18.164395] print_report+0x118/0x608 [ 18.164529] kasan_report+0xdc/0x128 [ 18.164650] __asan_report_load1_noabort+0x20/0x30 [ 18.165650] kmem_cache_oob+0x344/0x430 [ 18.165808] kunit_try_run_case+0x170/0x3f0 [ 18.166214] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.166532] kthread+0x328/0x630 [ 18.166673] ret_from_fork+0x10/0x20 [ 18.167092] [ 18.167400] Allocated by task 207: [ 18.167930] kasan_save_stack+0x3c/0x68 [ 18.168400] kasan_save_track+0x20/0x40 [ 18.169544] kasan_save_alloc_info+0x40/0x58 [ 18.169675] __kasan_slab_alloc+0xa8/0xb0 [ 18.171206] kmem_cache_alloc_noprof+0x10c/0x3a0 [ 18.171570] kmem_cache_oob+0x12c/0x430 [ 18.171685] kunit_try_run_case+0x170/0x3f0 [ 18.172250] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.172481] kthread+0x328/0x630 [ 18.172716] ret_from_fork+0x10/0x20 [ 18.173221] [ 18.173293] The buggy address belongs to the object at fff00000c7949000 [ 18.173293] which belongs to the cache test_cache of size 200 [ 18.173452] The buggy address is located 0 bytes to the right of [ 18.173452] allocated 200-byte region [fff00000c7949000, fff00000c79490c8) [ 18.174713] [ 18.175167] The buggy address belongs to the physical page: [ 18.175248] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107949 [ 18.175643] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.175815] page_type: f5(slab) [ 18.175912] raw: 0bfffe0000000000 fff00000c3e3cc80 dead000000000122 0000000000000000 [ 18.176028] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 18.176129] page dumped because: kasan: bad access detected [ 18.177547] [ 18.177740] Memory state around the buggy address: [ 18.178067] fff00000c7948f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.178224] fff00000c7949000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.178351] >fff00000c7949080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 18.178442] ^ [ 18.178524] fff00000c7949100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.178624] fff00000c7949180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.178714] ==================================================================
[ 11.623130] ================================================================== [ 11.623937] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 11.624170] Read of size 1 at addr ffff88810282f0c8 by task kunit_try_catch/225 [ 11.624406] [ 11.624499] CPU: 0 UID: 0 PID: 225 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7-next-20250526 #1 PREEMPT(voluntary) [ 11.624544] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.624556] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.624579] Call Trace: [ 11.624592] <TASK> [ 11.624609] dump_stack_lvl+0x73/0xb0 [ 11.624635] print_report+0xd1/0x650 [ 11.624657] ? __virt_addr_valid+0x1db/0x2d0 [ 11.624679] ? kmem_cache_oob+0x402/0x530 [ 11.624697] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.624718] ? kmem_cache_oob+0x402/0x530 [ 11.624736] kasan_report+0x141/0x180 [ 11.624759] ? kmem_cache_oob+0x402/0x530 [ 11.624782] __asan_report_load1_noabort+0x18/0x20 [ 11.624802] kmem_cache_oob+0x402/0x530 [ 11.624819] ? trace_hardirqs_on+0x37/0xe0 [ 11.624842] ? __pfx_kmem_cache_oob+0x10/0x10 [ 11.624860] ? finish_task_switch.isra.0+0x153/0x700 [ 11.624881] ? __switch_to+0x47/0xf50 [ 11.624910] ? __pfx_read_tsc+0x10/0x10 [ 11.624929] ? ktime_get_ts64+0x86/0x230 [ 11.624953] kunit_try_run_case+0x1a5/0x480 [ 11.624974] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.624993] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.625017] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.625040] ? __kthread_parkme+0x82/0x180 [ 11.625060] ? preempt_count_sub+0x50/0x80 [ 11.625082] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.625101] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.625124] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.625147] kthread+0x337/0x6f0 [ 11.625166] ? trace_preempt_on+0x20/0xc0 [ 11.625187] ? __pfx_kthread+0x10/0x10 [ 11.625206] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.625228] ? calculate_sigpending+0x7b/0xa0 [ 11.625251] ? __pfx_kthread+0x10/0x10 [ 11.625271] ret_from_fork+0x116/0x1d0 [ 11.625288] ? __pfx_kthread+0x10/0x10 [ 11.625308] ret_from_fork_asm+0x1a/0x30 [ 11.625338] </TASK> [ 11.625348] [ 11.641216] Allocated by task 225: [ 11.641570] kasan_save_stack+0x45/0x70 [ 11.642117] kasan_save_track+0x18/0x40 [ 11.642499] kasan_save_alloc_info+0x3b/0x50 [ 11.642651] __kasan_slab_alloc+0x91/0xa0 [ 11.642980] kmem_cache_alloc_noprof+0x123/0x3f0 [ 11.643498] kmem_cache_oob+0x157/0x530 [ 11.643896] kunit_try_run_case+0x1a5/0x480 [ 11.644305] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.644611] kthread+0x337/0x6f0 [ 11.644755] ret_from_fork+0x116/0x1d0 [ 11.645200] ret_from_fork_asm+0x1a/0x30 [ 11.645602] [ 11.645765] The buggy address belongs to the object at ffff88810282f000 [ 11.645765] which belongs to the cache test_cache of size 200 [ 11.646805] The buggy address is located 0 bytes to the right of [ 11.646805] allocated 200-byte region [ffff88810282f000, ffff88810282f0c8) [ 11.647692] [ 11.647972] The buggy address belongs to the physical page: [ 11.648492] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10282f [ 11.648763] flags: 0x200000000000000(node=0|zone=2) [ 11.649319] page_type: f5(slab) [ 11.649657] raw: 0200000000000000 ffff88810189c780 dead000000000122 0000000000000000 [ 11.650475] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 11.650909] page dumped because: kasan: bad access detected [ 11.651317] [ 11.651490] Memory state around the buggy address: [ 11.652003] ffff88810282ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.652523] ffff88810282f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.652799] >ffff88810282f080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 11.653546] ^ [ 11.654167] ffff88810282f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.654840] ffff88810282f180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.655163] ==================================================================