Date
Dec. 3, 2024, 11:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.987439] ================================================================== [ 30.989166] BUG: KASAN: slab-use-after-free in kmalloc_double_kzfree+0x168/0x308 [ 30.990064] Read of size 1 at addr fff00000c63183a0 by task kunit_try_catch/181 [ 30.992012] [ 30.992303] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 30.993851] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.994625] Hardware name: linux,dummy-virt (DT) [ 30.995508] Call trace: [ 30.995885] show_stack+0x20/0x38 (C) [ 30.996656] dump_stack_lvl+0x8c/0xd0 [ 30.997465] print_report+0x118/0x5e0 [ 30.998184] kasan_report+0xc8/0x118 [ 30.998821] __kasan_check_byte+0x54/0x70 [ 30.999728] kfree_sensitive+0x30/0xb0 [ 31.000364] kmalloc_double_kzfree+0x168/0x308 [ 31.001025] kunit_try_run_case+0x14c/0x3d0 [ 31.001760] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.002582] kthread+0x24c/0x2d0 [ 31.003462] ret_from_fork+0x10/0x20 [ 31.003957] [ 31.004262] Allocated by task 181: [ 31.004756] kasan_save_stack+0x3c/0x68 [ 31.005425] kasan_save_track+0x20/0x40 [ 31.006002] kasan_save_alloc_info+0x40/0x58 [ 31.006590] __kasan_kmalloc+0xd4/0xd8 [ 31.007536] __kmalloc_cache_noprof+0x15c/0x3c0 [ 31.008167] kmalloc_double_kzfree+0xb8/0x308 [ 31.008849] kunit_try_run_case+0x14c/0x3d0 [ 31.009764] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.010517] kthread+0x24c/0x2d0 [ 31.011019] ret_from_fork+0x10/0x20 [ 31.012138] [ 31.012435] Freed by task 181: [ 31.013107] kasan_save_stack+0x3c/0x68 [ 31.013959] kasan_save_track+0x20/0x40 [ 31.014534] kasan_save_free_info+0x4c/0x78 [ 31.015174] __kasan_slab_free+0x6c/0x98 [ 31.015807] kfree+0x114/0x3c8 [ 31.016657] kfree_sensitive+0x80/0xb0 [ 31.017296] kmalloc_double_kzfree+0x11c/0x308 [ 31.017912] kunit_try_run_case+0x14c/0x3d0 [ 31.018526] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.019447] kthread+0x24c/0x2d0 [ 31.020041] ret_from_fork+0x10/0x20 [ 31.020666] [ 31.020968] The buggy address belongs to the object at fff00000c63183a0 [ 31.020968] which belongs to the cache kmalloc-16 of size 16 [ 31.022647] The buggy address is located 0 bytes inside of [ 31.022647] freed 16-byte region [fff00000c63183a0, fff00000c63183b0) [ 31.024295] [ 31.024650] The buggy address belongs to the physical page: [ 31.025581] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106318 [ 31.026604] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.027835] page_type: f5(slab) [ 31.028601] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 31.029536] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 31.030617] page dumped because: kasan: bad access detected [ 31.031300] [ 31.031595] Memory state around the buggy address: [ 31.032272] fff00000c6318280: fa fb fc fc fa fb fc fc 00 02 fc fc 00 02 fc fc [ 31.033601] fff00000c6318300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 31.034481] >fff00000c6318380: fa fb fc fc fa fb fc fc fc fc fc fc fc fc fc fc [ 31.035533] ^ [ 31.036107] fff00000c6318400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.037008] fff00000c6318480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.037721] ==================================================================
[ 26.525409] ================================================================== [ 26.527187] BUG: KASAN: slab-use-after-free in kmalloc_double_kzfree+0x19d/0x360 [ 26.527927] Read of size 1 at addr ffff888101adffc0 by task kunit_try_catch/201 [ 26.529269] [ 26.529515] CPU: 0 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 26.530569] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.530935] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.531696] Call Trace: [ 26.531820] <TASK> [ 26.531928] dump_stack_lvl+0x73/0xb0 [ 26.532150] print_report+0xd1/0x640 [ 26.532482] ? __virt_addr_valid+0x1db/0x2d0 [ 26.533396] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.533935] kasan_report+0x102/0x140 [ 26.534371] ? kmalloc_double_kzfree+0x19d/0x360 [ 26.534966] ? kmalloc_double_kzfree+0x19d/0x360 [ 26.535398] ? kmalloc_double_kzfree+0x19d/0x360 [ 26.536066] __kasan_check_byte+0x3d/0x50 [ 26.536415] kfree_sensitive+0x22/0x90 [ 26.536717] kmalloc_double_kzfree+0x19d/0x360 [ 26.537256] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 26.537923] ? __schedule+0xc3e/0x2790 [ 26.538356] ? __pfx_read_tsc+0x10/0x10 [ 26.538684] ? ktime_get_ts64+0x86/0x230 [ 26.539139] kunit_try_run_case+0x1b3/0x490 [ 26.539586] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.540081] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.540486] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.540963] ? __kthread_parkme+0x82/0x160 [ 26.541323] ? preempt_count_sub+0x50/0x80 [ 26.541828] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.542169] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.542989] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.543473] kthread+0x257/0x310 [ 26.543836] ? __pfx_kthread+0x10/0x10 [ 26.544156] ret_from_fork+0x41/0x80 [ 26.544505] ? __pfx_kthread+0x10/0x10 [ 26.544857] ret_from_fork_asm+0x1a/0x30 [ 26.545312] </TASK> [ 26.545700] [ 26.545910] Allocated by task 201: [ 26.546297] kasan_save_stack+0x3d/0x60 [ 26.546601] kasan_save_track+0x18/0x40 [ 26.546853] kasan_save_alloc_info+0x3b/0x50 [ 26.547264] __kasan_kmalloc+0xb7/0xc0 [ 26.547679] __kmalloc_cache_noprof+0x184/0x410 [ 26.548171] kmalloc_double_kzfree+0xaa/0x360 [ 26.548659] kunit_try_run_case+0x1b3/0x490 [ 26.548976] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.549515] kthread+0x257/0x310 [ 26.549884] ret_from_fork+0x41/0x80 [ 26.550265] ret_from_fork_asm+0x1a/0x30 [ 26.550733] [ 26.550950] Freed by task 201: [ 26.551234] kasan_save_stack+0x3d/0x60 [ 26.551603] kasan_save_track+0x18/0x40 [ 26.551997] kasan_save_free_info+0x3f/0x60 [ 26.552441] __kasan_slab_free+0x56/0x70 [ 26.552862] kfree+0x123/0x3f0 [ 26.553218] kfree_sensitive+0x67/0x90 [ 26.553721] kmalloc_double_kzfree+0x12c/0x360 [ 26.554194] kunit_try_run_case+0x1b3/0x490 [ 26.554465] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.554760] kthread+0x257/0x310 [ 26.554985] ret_from_fork+0x41/0x80 [ 26.555534] ret_from_fork_asm+0x1a/0x30 [ 26.555962] [ 26.556220] The buggy address belongs to the object at ffff888101adffc0 [ 26.556220] which belongs to the cache kmalloc-16 of size 16 [ 26.557270] The buggy address is located 0 bytes inside of [ 26.557270] freed 16-byte region [ffff888101adffc0, ffff888101adffd0) [ 26.558186] [ 26.558344] The buggy address belongs to the physical page: [ 26.558823] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101adf [ 26.559482] flags: 0x200000000000000(node=0|zone=2) [ 26.560063] page_type: f5(slab) [ 26.560554] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 26.561046] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 26.561772] page dumped because: kasan: bad access detected [ 26.562186] [ 26.562331] Memory state around the buggy address: [ 26.562786] ffff888101adfe80: 00 05 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc [ 26.563425] ffff888101adff00: 00 02 fc fc fa fb fc fc 00 05 fc fc fa fb fc fc [ 26.563903] >ffff888101adff80: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 26.564473] ^ [ 26.565156] ffff888101ae0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.565851] ffff888101ae0080: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 26.566354] ==================================================================