Date
July 25, 2025, 3:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.382463] ================================================================== [ 32.382520] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0 [ 32.382571] Write of size 128 at addr fff00000c9726400 by task kunit_try_catch/202 [ 32.382633] [ 32.382679] CPU: 1 UID: 0 PID: 202 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 32.382765] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.382794] Hardware name: linux,dummy-virt (DT) [ 32.382833] Call trace: [ 32.382856] show_stack+0x20/0x38 (C) [ 32.382901] dump_stack_lvl+0x8c/0xd0 [ 32.382946] print_report+0x118/0x5e8 [ 32.382988] kasan_report+0xdc/0x128 [ 32.383030] kasan_check_range+0x100/0x1a8 [ 32.383109] __asan_memset+0x34/0x78 [ 32.383153] kmalloc_oob_in_memset+0x144/0x2d0 [ 32.383535] kunit_try_run_case+0x170/0x3f0 [ 32.383718] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.383813] kthread+0x328/0x630 [ 32.383910] ret_from_fork+0x10/0x20 [ 32.384051] [ 32.384089] Allocated by task 202: [ 32.384117] kasan_save_stack+0x3c/0x68 [ 32.384155] kasan_save_track+0x20/0x40 [ 32.384190] kasan_save_alloc_info+0x40/0x58 [ 32.384364] __kasan_kmalloc+0xd4/0xd8 [ 32.384470] __kmalloc_cache_noprof+0x16c/0x3c0 [ 32.384579] kmalloc_oob_in_memset+0xb0/0x2d0 [ 32.384733] kunit_try_run_case+0x170/0x3f0 [ 32.384800] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.384864] kthread+0x328/0x630 [ 32.384941] ret_from_fork+0x10/0x20 [ 32.384977] [ 32.384997] The buggy address belongs to the object at fff00000c9726400 [ 32.384997] which belongs to the cache kmalloc-128 of size 128 [ 32.385108] The buggy address is located 0 bytes inside of [ 32.385108] allocated 120-byte region [fff00000c9726400, fff00000c9726478) [ 32.385240] [ 32.385298] The buggy address belongs to the physical page: [ 32.385446] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109726 [ 32.385588] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.385634] page_type: f5(slab) [ 32.385711] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 32.385771] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 32.385808] page dumped because: kasan: bad access detected [ 32.385837] [ 32.385890] Memory state around the buggy address: [ 32.386087] fff00000c9726300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.386194] fff00000c9726380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.386309] >fff00000c9726400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 32.386406] ^ [ 32.386446] fff00000c9726480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.386506] fff00000c9726500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.386637] ==================================================================
[ 25.775451] ================================================================== [ 25.775837] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x15f/0x320 [ 25.776240] Write of size 128 at addr ffff888105800200 by task kunit_try_catch/219 [ 25.776486] [ 25.776566] CPU: 0 UID: 0 PID: 219 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 25.776611] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.776623] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.776643] Call Trace: [ 25.776655] <TASK> [ 25.776670] dump_stack_lvl+0x73/0xb0 [ 25.776698] print_report+0xd1/0x640 [ 25.776721] ? __virt_addr_valid+0x1db/0x2d0 [ 25.776744] ? kmalloc_oob_in_memset+0x15f/0x320 [ 25.776766] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.776916] ? kmalloc_oob_in_memset+0x15f/0x320 [ 25.776982] kasan_report+0x141/0x180 [ 25.777005] ? kmalloc_oob_in_memset+0x15f/0x320 [ 25.777032] kasan_check_range+0x10c/0x1c0 [ 25.777056] __asan_memset+0x27/0x50 [ 25.777080] kmalloc_oob_in_memset+0x15f/0x320 [ 25.777103] ? __pfx_kmalloc_oob_in_memset+0x10/0x10 [ 25.777131] ? __schedule+0x10da/0x2b60 [ 25.777152] ? __pfx_read_tsc+0x10/0x10 [ 25.777174] ? ktime_get_ts64+0x86/0x230 [ 25.777198] kunit_try_run_case+0x1a5/0x480 [ 25.777223] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.777278] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.777300] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.777326] ? __kthread_parkme+0x82/0x180 [ 25.777380] ? preempt_count_sub+0x50/0x80 [ 25.777438] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.777463] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.777487] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.777511] kthread+0x337/0x6f0 [ 25.777532] ? trace_preempt_on+0x20/0xc0 [ 25.777555] ? __pfx_kthread+0x10/0x10 [ 25.777576] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.777601] ? calculate_sigpending+0x7b/0xa0 [ 25.777624] ? __pfx_kthread+0x10/0x10 [ 25.777646] ret_from_fork+0x116/0x1d0 [ 25.777665] ? __pfx_kthread+0x10/0x10 [ 25.777686] ret_from_fork_asm+0x1a/0x30 [ 25.777717] </TASK> [ 25.777728] [ 25.792420] Allocated by task 219: [ 25.792654] kasan_save_stack+0x45/0x70 [ 25.793165] kasan_save_track+0x18/0x40 [ 25.793384] kasan_save_alloc_info+0x3b/0x50 [ 25.793536] __kasan_kmalloc+0xb7/0xc0 [ 25.793667] __kmalloc_cache_noprof+0x189/0x420 [ 25.793992] kmalloc_oob_in_memset+0xac/0x320 [ 25.794496] kunit_try_run_case+0x1a5/0x480 [ 25.794911] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.795507] kthread+0x337/0x6f0 [ 25.795909] ret_from_fork+0x116/0x1d0 [ 25.796362] ret_from_fork_asm+0x1a/0x30 [ 25.796816] [ 25.796990] The buggy address belongs to the object at ffff888105800200 [ 25.796990] which belongs to the cache kmalloc-128 of size 128 [ 25.797809] The buggy address is located 0 bytes inside of [ 25.797809] allocated 120-byte region [ffff888105800200, ffff888105800278) [ 25.798560] [ 25.798761] The buggy address belongs to the physical page: [ 25.799381] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105800 [ 25.800148] flags: 0x200000000000000(node=0|zone=2) [ 25.800656] page_type: f5(slab) [ 25.800991] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.802097] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.802486] page dumped because: kasan: bad access detected [ 25.803073] [ 25.803234] Memory state around the buggy address: [ 25.803687] ffff888105800100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.803920] ffff888105800180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.804488] >ffff888105800200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.805252] ^ [ 25.805970] ffff888105800280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.806682] ffff888105800300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.807264] ==================================================================