Date
June 2, 2025, 2:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.176542] ================================================================== [ 19.179187] BUG: KASAN: double-free in kfree_sensitive+0x3c/0xb0 [ 19.181824] Free of addr fff00000c58f5f40 by task kunit_try_catch/182 [ 19.182415] [ 19.182867] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 19.183076] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.183166] Hardware name: linux,dummy-virt (DT) [ 19.183255] Call trace: [ 19.183305] show_stack+0x20/0x38 (C) [ 19.183384] dump_stack_lvl+0x8c/0xd0 [ 19.183435] print_report+0x118/0x608 [ 19.183487] kasan_report_invalid_free+0xc0/0xe8 [ 19.183539] check_slab_allocation+0xd4/0x108 [ 19.183587] __kasan_slab_pre_free+0x2c/0x48 [ 19.183638] kfree+0xe8/0x3c8 [ 19.183683] kfree_sensitive+0x3c/0xb0 [ 19.183733] kmalloc_double_kzfree+0x168/0x308 [ 19.183781] kunit_try_run_case+0x170/0x3f0 [ 19.183827] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.183878] kthread+0x318/0x620 [ 19.183924] ret_from_fork+0x10/0x20 [ 19.183977] [ 19.189372] Allocated by task 182: [ 19.189792] kasan_save_stack+0x3c/0x68 [ 19.190738] kasan_save_track+0x20/0x40 [ 19.191163] kasan_save_alloc_info+0x40/0x58 [ 19.191564] __kasan_kmalloc+0xd4/0xd8 [ 19.191920] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.192773] kmalloc_double_kzfree+0xb8/0x308 [ 19.193360] kunit_try_run_case+0x170/0x3f0 [ 19.193964] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.194841] kthread+0x318/0x620 [ 19.195487] ret_from_fork+0x10/0x20 [ 19.195869] [ 19.196109] Freed by task 182: [ 19.196454] kasan_save_stack+0x3c/0x68 [ 19.196831] kasan_save_track+0x20/0x40 [ 19.197844] kasan_save_free_info+0x4c/0x78 [ 19.198435] __kasan_slab_free+0x6c/0x98 [ 19.198632] kfree+0x214/0x3c8 [ 19.198775] kfree_sensitive+0x80/0xb0 [ 19.198934] kmalloc_double_kzfree+0x11c/0x308 [ 19.199097] kunit_try_run_case+0x170/0x3f0 [ 19.199353] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.200272] kthread+0x318/0x620 [ 19.200527] ret_from_fork+0x10/0x20 [ 19.201097] [ 19.201449] The buggy address belongs to the object at fff00000c58f5f40 [ 19.201449] which belongs to the cache kmalloc-16 of size 16 [ 19.202467] The buggy address is located 0 bytes inside of [ 19.202467] 16-byte region [fff00000c58f5f40, fff00000c58f5f50) [ 19.203036] [ 19.203199] The buggy address belongs to the physical page: [ 19.203466] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058f5 [ 19.203833] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.204151] page_type: f5(slab) [ 19.204468] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 19.204932] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 19.206410] page dumped because: kasan: bad access detected [ 19.206891] [ 19.207123] Memory state around the buggy address: [ 19.207495] fff00000c58f5e00: 00 02 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 19.208010] fff00000c58f5e80: fa fb fc fc fa fb fc fc 00 04 fc fc fa fb fc fc [ 19.208949] >fff00000c58f5f00: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 19.209672] ^ [ 19.210458] fff00000c58f5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.211251] fff00000c58f6000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.211949] ==================================================================
[ 13.061255] ================================================================== [ 13.061841] BUG: KASAN: double-free in kfree_sensitive+0x2e/0x90 [ 13.062128] Free of addr ffff888101b5abc0 by task kunit_try_catch/200 [ 13.062779] [ 13.062999] CPU: 1 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 13.063061] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.063175] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.063200] Call Trace: [ 13.063213] <TASK> [ 13.063227] dump_stack_lvl+0x73/0xb0 [ 13.063266] print_report+0xd1/0x650 [ 13.063288] ? __virt_addr_valid+0x1db/0x2d0 [ 13.063316] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.063341] ? kfree_sensitive+0x2e/0x90 [ 13.063361] kasan_report_invalid_free+0xfc/0x120 [ 13.063383] ? kfree_sensitive+0x2e/0x90 [ 13.063404] ? kfree_sensitive+0x2e/0x90 [ 13.063423] check_slab_allocation+0x101/0x130 [ 13.063443] __kasan_slab_pre_free+0x28/0x40 [ 13.063462] kfree+0xf1/0x3f0 [ 13.063481] ? kfree_sensitive+0x2e/0x90 [ 13.063503] kfree_sensitive+0x2e/0x90 [ 13.063522] kmalloc_double_kzfree+0x19d/0x360 [ 13.063543] ? __pfx_kmalloc_double_kzfree+0x10/0x10 [ 13.063565] ? __schedule+0xce8/0x2840 [ 13.063587] ? __pfx_read_tsc+0x10/0x10 [ 13.063607] ? ktime_get_ts64+0x86/0x230 [ 13.063630] kunit_try_run_case+0x1a6/0x480 [ 13.063653] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.063673] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 13.063695] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.063718] ? __kthread_parkme+0x82/0x160 [ 13.063739] ? preempt_count_sub+0x50/0x80 [ 13.063764] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.063785] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.063811] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.063837] kthread+0x324/0x6e0 [ 13.063857] ? trace_preempt_on+0x20/0xc0 [ 13.063879] ? __pfx_kthread+0x10/0x10 [ 13.063900] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.063921] ? calculate_sigpending+0x7b/0xa0 [ 13.063942] ? __pfx_kthread+0x10/0x10 [ 13.063963] ret_from_fork+0x41/0x80 [ 13.063980] ? __pfx_kthread+0x10/0x10 [ 13.064002] ret_from_fork_asm+0x1a/0x30 [ 13.064042] </TASK> [ 13.064052] [ 13.074484] Allocated by task 200: [ 13.074985] kasan_save_stack+0x45/0x70 [ 13.075207] kasan_save_track+0x18/0x40 [ 13.075498] kasan_save_alloc_info+0x3b/0x50 [ 13.075857] __kasan_kmalloc+0xb7/0xc0 [ 13.075992] __kmalloc_cache_noprof+0x18a/0x420 [ 13.076290] kmalloc_double_kzfree+0xaa/0x360 [ 13.076494] kunit_try_run_case+0x1a6/0x480 [ 13.076722] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.076971] kthread+0x324/0x6e0 [ 13.077382] ret_from_fork+0x41/0x80 [ 13.077702] ret_from_fork_asm+0x1a/0x30 [ 13.077861] [ 13.077962] Freed by task 200: [ 13.078129] kasan_save_stack+0x45/0x70 [ 13.078614] kasan_save_track+0x18/0x40 [ 13.078775] kasan_save_free_info+0x3f/0x60 [ 13.078975] __kasan_slab_free+0x56/0x70 [ 13.079251] kfree+0x224/0x3f0 [ 13.079373] kfree_sensitive+0x67/0x90 [ 13.079754] kmalloc_double_kzfree+0x12c/0x360 [ 13.079923] kunit_try_run_case+0x1a6/0x480 [ 13.080339] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.080717] kthread+0x324/0x6e0 [ 13.080909] ret_from_fork+0x41/0x80 [ 13.081304] ret_from_fork_asm+0x1a/0x30 [ 13.081463] [ 13.081554] The buggy address belongs to the object at ffff888101b5abc0 [ 13.081554] which belongs to the cache kmalloc-16 of size 16 [ 13.082422] The buggy address is located 0 bytes inside of [ 13.082422] 16-byte region [ffff888101b5abc0, ffff888101b5abd0) [ 13.083134] [ 13.083261] The buggy address belongs to the physical page: [ 13.083703] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101b5a [ 13.084047] flags: 0x200000000000000(node=0|zone=2) [ 13.084276] page_type: f5(slab) [ 13.084422] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 13.084908] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 13.085304] page dumped because: kasan: bad access detected [ 13.085508] [ 13.085723] Memory state around the buggy address: [ 13.086070] ffff888101b5aa80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 13.086303] ffff888101b5ab00: fa fb fc fc fa fb fc fc 00 05 fc fc fa fb fc fc [ 13.086923] >ffff888101b5ab80: fa fb fc fc fa fb fc fc fa fb fc fc fc fc fc fc [ 13.087293] ^ [ 13.087590] ffff888101b5ac00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.088104] ffff888101b5ac80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.088415] ==================================================================