Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.341692] ================================================================== [ 15.341955] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 15.342052] Write of size 4 at addr fff00000c5f9dd75 by task kunit_try_catch/175 [ 15.342171] [ 15.342212] CPU: 1 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.342358] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.342441] Hardware name: linux,dummy-virt (DT) [ 15.342620] Call trace: [ 15.342679] show_stack+0x20/0x38 (C) [ 15.342768] dump_stack_lvl+0x8c/0xd0 [ 15.342897] print_report+0x118/0x5d0 [ 15.342974] kasan_report+0xdc/0x128 [ 15.343026] kasan_check_range+0x100/0x1a8 [ 15.343219] __asan_memset+0x34/0x78 [ 15.343292] kmalloc_oob_memset_4+0x150/0x300 [ 15.343346] kunit_try_run_case+0x170/0x3f0 [ 15.343462] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.343573] kthread+0x328/0x630 [ 15.343649] ret_from_fork+0x10/0x20 [ 15.343770] [ 15.343841] Allocated by task 175: [ 15.343891] kasan_save_stack+0x3c/0x68 [ 15.343972] kasan_save_track+0x20/0x40 [ 15.344233] kasan_save_alloc_info+0x40/0x58 [ 15.344431] __kasan_kmalloc+0xd4/0xd8 [ 15.344589] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.344666] kmalloc_oob_memset_4+0xb0/0x300 [ 15.344889] kunit_try_run_case+0x170/0x3f0 [ 15.345082] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.345177] kthread+0x328/0x630 [ 15.345211] ret_from_fork+0x10/0x20 [ 15.345484] [ 15.345642] The buggy address belongs to the object at fff00000c5f9dd00 [ 15.345642] which belongs to the cache kmalloc-128 of size 128 [ 15.345823] The buggy address is located 117 bytes inside of [ 15.345823] allocated 120-byte region [fff00000c5f9dd00, fff00000c5f9dd78) [ 15.345887] [ 15.346047] The buggy address belongs to the physical page: [ 15.346224] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105f9d [ 15.346341] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.346467] page_type: f5(slab) [ 15.346525] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.346894] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.347132] page dumped because: kasan: bad access detected [ 15.347311] [ 15.347452] Memory state around the buggy address: [ 15.347500] fff00000c5f9dc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.347887] fff00000c5f9dc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.347966] >fff00000c5f9dd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.348014] ^ [ 15.348055] fff00000c5f9dd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.348095] fff00000c5f9de00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.348131] ==================================================================
[ 12.194650] ================================================================== [ 12.195129] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.195792] Write of size 4 at addr ffff8881027e4275 by task kunit_try_catch/192 [ 12.196233] [ 12.196358] CPU: 0 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.196405] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.196416] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.196437] Call Trace: [ 12.196448] <TASK> [ 12.196463] dump_stack_lvl+0x73/0xb0 [ 12.196506] print_report+0xd1/0x610 [ 12.196527] ? __virt_addr_valid+0x1db/0x2d0 [ 12.196550] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.196570] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.196592] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.196613] kasan_report+0x141/0x180 [ 12.196634] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.196659] kasan_check_range+0x10c/0x1c0 [ 12.196681] __asan_memset+0x27/0x50 [ 12.196700] kmalloc_oob_memset_4+0x166/0x330 [ 12.196722] ? __kasan_check_write+0x18/0x20 [ 12.196741] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.196762] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 12.196787] ? trace_hardirqs_on+0x37/0xe0 [ 12.196811] ? __pfx_read_tsc+0x10/0x10 [ 12.196831] ? ktime_get_ts64+0x86/0x230 [ 12.196855] kunit_try_run_case+0x1a5/0x480 [ 12.196880] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.196904] ? queued_spin_lock_slowpath+0x116/0xb40 [ 12.196930] ? __kthread_parkme+0x82/0x180 [ 12.196950] ? preempt_count_sub+0x50/0x80 [ 12.196974] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.196997] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.197020] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.197134] kthread+0x337/0x6f0 [ 12.197169] ? trace_preempt_on+0x20/0xc0 [ 12.197191] ? __pfx_kthread+0x10/0x10 [ 12.197211] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.197232] ? calculate_sigpending+0x7b/0xa0 [ 12.197256] ? __pfx_kthread+0x10/0x10 [ 12.197276] ret_from_fork+0x116/0x1d0 [ 12.197296] ? __pfx_kthread+0x10/0x10 [ 12.197315] ret_from_fork_asm+0x1a/0x30 [ 12.197346] </TASK> [ 12.197356] [ 12.204735] Allocated by task 192: [ 12.205305] kasan_save_stack+0x45/0x70 [ 12.205619] kasan_save_track+0x18/0x40 [ 12.205810] kasan_save_alloc_info+0x3b/0x50 [ 12.205972] __kasan_kmalloc+0xb7/0xc0 [ 12.206330] __kmalloc_cache_noprof+0x189/0x420 [ 12.206559] kmalloc_oob_memset_4+0xac/0x330 [ 12.206757] kunit_try_run_case+0x1a5/0x480 [ 12.206906] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.207209] kthread+0x337/0x6f0 [ 12.207381] ret_from_fork+0x116/0x1d0 [ 12.207562] ret_from_fork_asm+0x1a/0x30 [ 12.207703] [ 12.207794] The buggy address belongs to the object at ffff8881027e4200 [ 12.207794] which belongs to the cache kmalloc-128 of size 128 [ 12.208384] The buggy address is located 117 bytes inside of [ 12.208384] allocated 120-byte region [ffff8881027e4200, ffff8881027e4278) [ 12.208763] [ 12.208838] The buggy address belongs to the physical page: [ 12.209015] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027e4 [ 12.209410] flags: 0x200000000000000(node=0|zone=2) [ 12.210019] page_type: f5(slab) [ 12.210348] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.211079] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.211485] page dumped because: kasan: bad access detected [ 12.211747] [ 12.211838] Memory state around the buggy address: [ 12.211995] ffff8881027e4100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.212211] ffff8881027e4180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.212537] >ffff8881027e4200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.212859] ^ [ 12.213172] ffff8881027e4280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.213453] ffff8881027e4300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.213925] ==================================================================