Date
Dec. 9, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.108995] ================================================================== [ 24.109990] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 24.110746] Write of size 16 at addr fff00000c6361160 by task kunit_try_catch/154 [ 24.111716] [ 24.112479] CPU: 1 UID: 0 PID: 154 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.114036] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.114998] Hardware name: linux,dummy-virt (DT) [ 24.115650] Call trace: [ 24.116112] show_stack+0x20/0x38 (C) [ 24.116732] dump_stack_lvl+0x8c/0xd0 [ 24.117317] print_report+0x118/0x5e0 [ 24.117866] kasan_report+0xc8/0x118 [ 24.118389] __asan_report_store16_noabort+0x20/0x30 [ 24.119130] kmalloc_oob_16+0x3a0/0x3f8 [ 24.119600] kunit_try_run_case+0x14c/0x3d0 [ 24.120265] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.121076] kthread+0x24c/0x2d0 [ 24.121623] ret_from_fork+0x10/0x20 [ 24.122208] [ 24.122598] Allocated by task 154: [ 24.123186] kasan_save_stack+0x3c/0x68 [ 24.123824] kasan_save_track+0x20/0x40 [ 24.124469] kasan_save_alloc_info+0x40/0x58 [ 24.125164] __kasan_kmalloc+0xd4/0xd8 [ 24.125788] __kmalloc_cache_noprof+0x15c/0x3c0 [ 24.126436] kmalloc_oob_16+0xb4/0x3f8 [ 24.127193] kunit_try_run_case+0x14c/0x3d0 [ 24.127984] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.128775] kthread+0x24c/0x2d0 [ 24.129247] ret_from_fork+0x10/0x20 [ 24.130034] [ 24.130352] The buggy address belongs to the object at fff00000c6361160 [ 24.130352] which belongs to the cache kmalloc-16 of size 16 [ 24.132107] The buggy address is located 0 bytes inside of [ 24.132107] allocated 13-byte region [fff00000c6361160, fff00000c636116d) [ 24.133417] [ 24.133641] The buggy address belongs to the physical page: [ 24.134651] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106361 [ 24.135882] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.136629] page_type: f5(slab) [ 24.137112] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 24.137940] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 24.138775] page dumped because: kasan: bad access detected [ 24.139346] [ 24.139661] Memory state around the buggy address: [ 24.140519] fff00000c6361000: 00 02 fc fc 00 02 fc fc 00 05 fc fc fa fb fc fc [ 24.141292] fff00000c6361080: 00 02 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.142117] >fff00000c6361100: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc [ 24.143081] ^ [ 24.143824] fff00000c6361180: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.144603] fff00000c6361200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.145376] ==================================================================
[ 23.973472] ================================================================== [ 23.975571] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x454/0x4a0 [ 23.976871] Write of size 16 at addr ffff888101b7dc20 by task kunit_try_catch/173 [ 23.978249] [ 23.978448] CPU: 0 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 23.979685] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.980193] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.981165] Call Trace: [ 23.981776] <TASK> [ 23.982033] dump_stack_lvl+0x73/0xb0 [ 23.983396] print_report+0xd1/0x640 [ 23.984497] ? __virt_addr_valid+0x1db/0x2d0 [ 23.984985] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.985769] kasan_report+0x102/0x140 [ 23.986210] ? kmalloc_oob_16+0x454/0x4a0 [ 23.986897] ? kmalloc_oob_16+0x454/0x4a0 [ 23.987833] __asan_report_store16_noabort+0x1b/0x30 [ 23.988215] kmalloc_oob_16+0x454/0x4a0 [ 23.989670] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 23.990100] ? __schedule+0xc70/0x27e0 [ 23.990989] ? __pfx_read_tsc+0x10/0x10 [ 23.991558] ? ktime_get_ts64+0x86/0x230 [ 23.992443] kunit_try_run_case+0x1b3/0x490 [ 23.992895] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.993701] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 23.994360] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.995521] ? __kthread_parkme+0x82/0x160 [ 23.996521] ? preempt_count_sub+0x50/0x80 [ 23.997249] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.998515] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.999040] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.999623] kthread+0x257/0x310 [ 24.000430] ? __pfx_kthread+0x10/0x10 [ 24.000977] ret_from_fork+0x41/0x80 [ 24.002087] ? __pfx_kthread+0x10/0x10 [ 24.003099] ret_from_fork_asm+0x1a/0x30 [ 24.003654] </TASK> [ 24.004428] [ 24.004663] Allocated by task 173: [ 24.005985] kasan_save_stack+0x3d/0x60 [ 24.006769] kasan_save_track+0x18/0x40 [ 24.007422] kasan_save_alloc_info+0x3b/0x50 [ 24.007754] __kasan_kmalloc+0xb7/0xc0 [ 24.008407] __kmalloc_cache_noprof+0x184/0x410 [ 24.009083] kmalloc_oob_16+0xa9/0x4a0 [ 24.010528] kunit_try_run_case+0x1b3/0x490 [ 24.011558] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.012748] kthread+0x257/0x310 [ 24.013089] ret_from_fork+0x41/0x80 [ 24.013732] ret_from_fork_asm+0x1a/0x30 [ 24.014762] [ 24.015027] The buggy address belongs to the object at ffff888101b7dc20 [ 24.015027] which belongs to the cache kmalloc-16 of size 16 [ 24.016938] The buggy address is located 0 bytes inside of [ 24.016938] allocated 13-byte region [ffff888101b7dc20, ffff888101b7dc2d) [ 24.018683] [ 24.018922] The buggy address belongs to the physical page: [ 24.020064] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101b7d [ 24.021389] flags: 0x200000000000000(node=0|zone=2) [ 24.022170] page_type: f5(slab) [ 24.022558] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 24.024062] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 24.024823] page dumped because: kasan: bad access detected [ 24.025389] [ 24.025586] Memory state around the buggy address: [ 24.026628] ffff888101b7db00: 00 05 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 24.027691] ffff888101b7db80: 00 02 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.028966] >ffff888101b7dc00: 00 05 fc fc 00 05 fc fc 00 00 fc fc fc fc fc fc [ 24.029769] ^ [ 24.030801] ffff888101b7dc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.031792] ffff888101b7dd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.032079] ==================================================================