Date
July 3, 2025, 3:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.593855] ================================================================== [ 15.593916] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 15.593991] Write of size 2 at addr fff00000c7811277 by task kunit_try_catch/175 [ 15.594038] [ 15.594072] CPU: 1 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT [ 15.594152] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.594530] Hardware name: linux,dummy-virt (DT) [ 15.594868] Call trace: [ 15.594925] show_stack+0x20/0x38 (C) [ 15.595148] dump_stack_lvl+0x8c/0xd0 [ 15.595477] print_report+0x118/0x608 [ 15.595625] kasan_report+0xdc/0x128 [ 15.595699] kasan_check_range+0x100/0x1a8 [ 15.595886] __asan_memset+0x34/0x78 [ 15.596205] kmalloc_oob_memset_2+0x150/0x2f8 [ 15.596365] kunit_try_run_case+0x170/0x3f0 [ 15.596544] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.596678] kthread+0x328/0x630 [ 15.596966] ret_from_fork+0x10/0x20 [ 15.597194] [ 15.597310] Allocated by task 175: [ 15.597582] kasan_save_stack+0x3c/0x68 [ 15.597892] kasan_save_track+0x20/0x40 [ 15.598124] kasan_save_alloc_info+0x40/0x58 [ 15.598301] __kasan_kmalloc+0xd4/0xd8 [ 15.598462] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.598504] kmalloc_oob_memset_2+0xb0/0x2f8 [ 15.598549] kunit_try_run_case+0x170/0x3f0 [ 15.598587] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.598791] kthread+0x328/0x630 [ 15.599006] ret_from_fork+0x10/0x20 [ 15.599153] [ 15.599196] The buggy address belongs to the object at fff00000c7811200 [ 15.599196] which belongs to the cache kmalloc-128 of size 128 [ 15.599310] The buggy address is located 119 bytes inside of [ 15.599310] allocated 120-byte region [fff00000c7811200, fff00000c7811278) [ 15.599511] [ 15.599578] The buggy address belongs to the physical page: [ 15.599778] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107811 [ 15.600072] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.600184] page_type: f5(slab) [ 15.600253] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.600420] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.600525] page dumped because: kasan: bad access detected [ 15.600712] [ 15.600845] Memory state around the buggy address: [ 15.601078] fff00000c7811100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.601196] fff00000c7811180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.601382] >fff00000c7811200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.601469] ^ [ 15.601681] fff00000c7811280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.601931] fff00000c7811300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.602156] ==================================================================
[ 11.264512] ================================================================== [ 11.264989] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.265575] Write of size 2 at addr ffff888103138e77 by task kunit_try_catch/191 [ 11.266359] [ 11.266508] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.15.5-rc1 #1 PREEMPT(voluntary) [ 11.266580] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.266592] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.266614] Call Trace: [ 11.266627] <TASK> [ 11.266667] dump_stack_lvl+0x73/0xb0 [ 11.266697] print_report+0xd1/0x650 [ 11.266722] ? __virt_addr_valid+0x1db/0x2d0 [ 11.266754] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.266778] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.266800] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.266833] kasan_report+0x141/0x180 [ 11.266856] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.266883] kasan_check_range+0x10c/0x1c0 [ 11.266903] __asan_memset+0x27/0x50 [ 11.266923] kmalloc_oob_memset_2+0x166/0x330 [ 11.266955] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.266980] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.267007] kunit_try_run_case+0x1a5/0x480 [ 11.267042] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.267064] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.267089] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.267113] ? __kthread_parkme+0x82/0x180 [ 11.267135] ? preempt_count_sub+0x50/0x80 [ 11.267161] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.267185] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.267207] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.267230] kthread+0x337/0x6f0 [ 11.267258] ? trace_preempt_on+0x20/0xc0 [ 11.267352] ? __pfx_kthread+0x10/0x10 [ 11.267376] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.267398] ? calculate_sigpending+0x7b/0xa0 [ 11.267421] ? __pfx_kthread+0x10/0x10 [ 11.267439] ret_from_fork+0x41/0x80 [ 11.267462] ? __pfx_kthread+0x10/0x10 [ 11.267480] ret_from_fork_asm+0x1a/0x30 [ 11.267511] </TASK> [ 11.267522] [ 11.275852] Allocated by task 191: [ 11.276041] kasan_save_stack+0x45/0x70 [ 11.276258] kasan_save_track+0x18/0x40 [ 11.276618] kasan_save_alloc_info+0x3b/0x50 [ 11.276814] __kasan_kmalloc+0xb7/0xc0 [ 11.277015] __kmalloc_cache_noprof+0x189/0x420 [ 11.277183] kmalloc_oob_memset_2+0xac/0x330 [ 11.277584] kunit_try_run_case+0x1a5/0x480 [ 11.277933] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.278111] kthread+0x337/0x6f0 [ 11.278231] ret_from_fork+0x41/0x80 [ 11.278431] ret_from_fork_asm+0x1a/0x30 [ 11.278630] [ 11.278837] The buggy address belongs to the object at ffff888103138e00 [ 11.278837] which belongs to the cache kmalloc-128 of size 128 [ 11.279475] The buggy address is located 119 bytes inside of [ 11.279475] allocated 120-byte region [ffff888103138e00, ffff888103138e78) [ 11.279996] [ 11.280073] The buggy address belongs to the physical page: [ 11.280322] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103138 [ 11.280713] flags: 0x200000000000000(node=0|zone=2) [ 11.281055] page_type: f5(slab) [ 11.281182] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.281974] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.282299] page dumped because: kasan: bad access detected [ 11.282754] [ 11.282882] Memory state around the buggy address: [ 11.283119] ffff888103138d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.283349] ffff888103138d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.283756] >ffff888103138e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.284006] ^ [ 11.284321] ffff888103138e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.284680] ffff888103138f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.284981] ==================================================================