Date
July 25, 2025, 3:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.110106] ================================================================== [ 32.110174] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8 [ 32.110228] Write of size 1 at addr fff00000c99a200a by task kunit_try_catch/178 [ 32.110276] [ 32.110308] CPU: 1 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 32.110394] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.110423] Hardware name: linux,dummy-virt (DT) [ 32.110452] Call trace: [ 32.110474] show_stack+0x20/0x38 (C) [ 32.110520] dump_stack_lvl+0x8c/0xd0 [ 32.110864] print_report+0x118/0x5e8 [ 32.111706] kasan_report+0xdc/0x128 [ 32.111803] __asan_report_store1_noabort+0x20/0x30 [ 32.112368] kmalloc_large_oob_right+0x278/0x2b8 [ 32.112456] kunit_try_run_case+0x170/0x3f0 [ 32.112868] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.112974] kthread+0x328/0x630 [ 32.113128] ret_from_fork+0x10/0x20 [ 32.113249] [ 32.113592] The buggy address belongs to the physical page: [ 32.113882] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1099a0 [ 32.114056] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 32.114126] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 32.114590] page_type: f8(unknown) [ 32.114688] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 32.114748] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 32.115014] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 32.115191] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 32.115280] head: 0bfffe0000000002 ffffc1ffc3266801 00000000ffffffff 00000000ffffffff [ 32.115328] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 32.115374] page dumped because: kasan: bad access detected [ 32.115404] [ 32.115580] Memory state around the buggy address: [ 32.115775] fff00000c99a1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.115964] fff00000c99a1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.116202] >fff00000c99a2000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 32.116624] ^ [ 32.116721] fff00000c99a2080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 32.116974] fff00000c99a2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 32.117020] ==================================================================
[ 25.182098] ================================================================== [ 25.182732] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2e9/0x330 [ 25.183128] Write of size 1 at addr ffff888102b4200a by task kunit_try_catch/195 [ 25.183434] [ 25.183536] CPU: 0 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 25.183582] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.183594] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.183614] Call Trace: [ 25.183627] <TASK> [ 25.183642] dump_stack_lvl+0x73/0xb0 [ 25.183669] print_report+0xd1/0x640 [ 25.183692] ? __virt_addr_valid+0x1db/0x2d0 [ 25.183716] ? kmalloc_large_oob_right+0x2e9/0x330 [ 25.183738] ? kasan_addr_to_slab+0x11/0xa0 [ 25.183759] ? kmalloc_large_oob_right+0x2e9/0x330 [ 25.183782] kasan_report+0x141/0x180 [ 25.183805] ? kmalloc_large_oob_right+0x2e9/0x330 [ 25.183832] __asan_report_store1_noabort+0x1b/0x30 [ 25.183858] kmalloc_large_oob_right+0x2e9/0x330 [ 25.183880] ? __pfx_kmalloc_large_oob_right+0x10/0x10 [ 25.183905] ? __schedule+0x10da/0x2b60 [ 25.183928] ? __pfx_read_tsc+0x10/0x10 [ 25.183960] ? ktime_get_ts64+0x86/0x230 [ 25.183984] kunit_try_run_case+0x1a5/0x480 [ 25.184009] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.184032] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.184076] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.184104] ? __kthread_parkme+0x82/0x180 [ 25.184126] ? preempt_count_sub+0x50/0x80 [ 25.184150] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.184175] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.184199] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.184223] kthread+0x337/0x6f0 [ 25.184245] ? trace_preempt_on+0x20/0xc0 [ 25.184268] ? __pfx_kthread+0x10/0x10 [ 25.184290] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.184316] ? calculate_sigpending+0x7b/0xa0 [ 25.184340] ? __pfx_kthread+0x10/0x10 [ 25.184362] ret_from_fork+0x116/0x1d0 [ 25.184381] ? __pfx_kthread+0x10/0x10 [ 25.184402] ret_from_fork_asm+0x1a/0x30 [ 25.184435] </TASK> [ 25.184446] [ 25.193778] The buggy address belongs to the physical page: [ 25.194458] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b40 [ 25.194816] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 25.195392] flags: 0x200000000000040(head|node=0|zone=2) [ 25.195674] page_type: f8(unknown) [ 25.196153] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 25.196505] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 25.196973] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 25.197277] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000 [ 25.197546] head: 0200000000000002 ffffea00040ad001 00000000ffffffff 00000000ffffffff [ 25.197995] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 25.198336] page dumped because: kasan: bad access detected [ 25.198557] [ 25.198645] Memory state around the buggy address: [ 25.198961] ffff888102b41f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.199283] ffff888102b41f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.199589] >ffff888102b42000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 25.199877] ^ [ 25.200216] ffff888102b42080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 25.200554] ffff888102b42100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 25.201007] ==================================================================