Date
May 13, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.333067] ================================================================== [ 19.333161] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 19.333253] Write of size 2 at addr fff00000c4065377 by task kunit_try_catch/172 [ 19.333308] [ 19.333357] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 19.333456] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.333487] Hardware name: linux,dummy-virt (DT) [ 19.334019] Call trace: [ 19.334077] show_stack+0x20/0x38 (C) [ 19.334148] dump_stack_lvl+0x8c/0xd0 [ 19.334219] print_report+0x118/0x608 [ 19.334701] kasan_report+0xdc/0x128 [ 19.334967] kasan_check_range+0x100/0x1a8 [ 19.335042] __asan_memset+0x34/0x78 [ 19.335347] kmalloc_oob_memset_2+0x150/0x2f8 [ 19.335474] kunit_try_run_case+0x170/0x3f0 [ 19.335541] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.335863] kthread+0x328/0x630 [ 19.335943] ret_from_fork+0x10/0x20 [ 19.336290] [ 19.336369] Allocated by task 172: [ 19.336410] kasan_save_stack+0x3c/0x68 [ 19.336479] kasan_save_track+0x20/0x40 [ 19.336761] kasan_save_alloc_info+0x40/0x58 [ 19.336845] __kasan_kmalloc+0xd4/0xd8 [ 19.336908] __kmalloc_cache_noprof+0x15c/0x3c0 [ 19.336952] kmalloc_oob_memset_2+0xb0/0x2f8 [ 19.337011] kunit_try_run_case+0x170/0x3f0 [ 19.337222] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.337594] kthread+0x328/0x630 [ 19.337648] ret_from_fork+0x10/0x20 [ 19.337691] [ 19.337954] The buggy address belongs to the object at fff00000c4065300 [ 19.337954] which belongs to the cache kmalloc-128 of size 128 [ 19.338068] The buggy address is located 119 bytes inside of [ 19.338068] allocated 120-byte region [fff00000c4065300, fff00000c4065378) [ 19.338139] [ 19.338415] The buggy address belongs to the physical page: [ 19.338547] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104065 [ 19.338619] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.338870] page_type: f5(slab) [ 19.339063] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.339127] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.339174] page dumped because: kasan: bad access detected [ 19.339211] [ 19.339232] Memory state around the buggy address: [ 19.339408] fff00000c4065200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.339483] fff00000c4065280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.339534] >fff00000c4065300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.339760] ^ [ 19.339826] fff00000c4065380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.340119] fff00000c4065400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.340259] ==================================================================
[ 11.163669] ================================================================== [ 11.165065] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.166152] Write of size 2 at addr ffff8881029ce377 by task kunit_try_catch/189 [ 11.167100] [ 11.167504] CPU: 0 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 11.167605] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.167627] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.167648] Call Trace: [ 11.167663] <TASK> [ 11.167683] dump_stack_lvl+0x73/0xb0 [ 11.167751] print_report+0xd1/0x650 [ 11.167774] ? __virt_addr_valid+0x1db/0x2d0 [ 11.167799] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.167820] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.167842] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.167865] kasan_report+0x141/0x180 [ 11.167887] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.167913] kasan_check_range+0x10c/0x1c0 [ 11.167937] __asan_memset+0x27/0x50 [ 11.167956] kmalloc_oob_memset_2+0x166/0x330 [ 11.167979] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.168001] ? __schedule+0x10cc/0x2b60 [ 11.168023] ? __pfx_read_tsc+0x10/0x10 [ 11.168044] ? ktime_get_ts64+0x86/0x230 [ 11.168070] kunit_try_run_case+0x1a5/0x480 [ 11.168097] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.168119] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.168142] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.168183] ? __kthread_parkme+0x82/0x180 [ 11.168205] ? preempt_count_sub+0x50/0x80 [ 11.168231] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.168254] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.168276] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.168299] kthread+0x337/0x6f0 [ 11.168318] ? trace_preempt_on+0x20/0xc0 [ 11.168343] ? __pfx_kthread+0x10/0x10 [ 11.168363] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.168383] ? calculate_sigpending+0x7b/0xa0 [ 11.168408] ? __pfx_kthread+0x10/0x10 [ 11.168429] ret_from_fork+0x116/0x1d0 [ 11.168448] ? __pfx_kthread+0x10/0x10 [ 11.168468] ret_from_fork_asm+0x1a/0x30 [ 11.168500] </TASK> [ 11.168527] [ 11.185128] Allocated by task 189: [ 11.185627] kasan_save_stack+0x45/0x70 [ 11.185971] kasan_save_track+0x18/0x40 [ 11.186550] kasan_save_alloc_info+0x3b/0x50 [ 11.186715] __kasan_kmalloc+0xb7/0xc0 [ 11.187192] __kmalloc_cache_noprof+0x189/0x420 [ 11.187753] kmalloc_oob_memset_2+0xac/0x330 [ 11.188211] kunit_try_run_case+0x1a5/0x480 [ 11.188542] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.189124] kthread+0x337/0x6f0 [ 11.189430] ret_from_fork+0x116/0x1d0 [ 11.189796] ret_from_fork_asm+0x1a/0x30 [ 11.189937] [ 11.190010] The buggy address belongs to the object at ffff8881029ce300 [ 11.190010] which belongs to the cache kmalloc-128 of size 128 [ 11.191156] The buggy address is located 119 bytes inside of [ 11.191156] allocated 120-byte region [ffff8881029ce300, ffff8881029ce378) [ 11.192741] [ 11.193084] The buggy address belongs to the physical page: [ 11.193569] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029ce [ 11.194159] flags: 0x200000000000000(node=0|zone=2) [ 11.194740] page_type: f5(slab) [ 11.195011] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.195372] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.196052] page dumped because: kasan: bad access detected [ 11.196352] [ 11.196536] Memory state around the buggy address: [ 11.197051] ffff8881029ce200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.197375] ffff8881029ce280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.198110] >ffff8881029ce300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.198623] ^ [ 11.199158] ffff8881029ce380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.199662] ffff8881029ce400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.199880] ==================================================================