Date
July 10, 2025, 6:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 49.783134] ================================================================== [ 49.783207] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 49.783207] [ 49.783297] Use-after-free read at 0x00000000789fd6be (in kfence-#147): [ 49.783365] test_krealloc+0x51c/0x830 [ 49.783410] kunit_try_run_case+0x170/0x3f0 [ 49.783461] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 49.783507] kthread+0x328/0x630 [ 49.783547] ret_from_fork+0x10/0x20 [ 49.783587] [ 49.783612] kfence-#147: 0x00000000789fd6be-0x0000000012c3a69e, size=32, cache=kmalloc-32 [ 49.783612] [ 49.783666] allocated by task 337 on cpu 0 at 49.782424s (0.001238s ago): [ 49.783734] test_alloc+0x29c/0x628 [ 49.783775] test_krealloc+0xc0/0x830 [ 49.783814] kunit_try_run_case+0x170/0x3f0 [ 49.783855] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 49.783901] kthread+0x328/0x630 [ 49.783937] ret_from_fork+0x10/0x20 [ 49.783977] [ 49.784000] freed by task 337 on cpu 0 at 49.782729s (0.001267s ago): [ 49.784060] krealloc_noprof+0x148/0x360 [ 49.784101] test_krealloc+0x1dc/0x830 [ 49.784141] kunit_try_run_case+0x170/0x3f0 [ 49.784182] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 49.784226] kthread+0x328/0x630 [ 49.784261] ret_from_fork+0x10/0x20 [ 49.784301] [ 49.784359] CPU: 0 UID: 0 PID: 337 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 49.784440] Tainted: [B]=BAD_PAGE, [N]=TEST [ 49.784471] Hardware name: linux,dummy-virt (DT) [ 49.784506] ==================================================================
[ 49.100760] ================================================================== [ 49.101252] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 49.101252] [ 49.101640] Use-after-free read at 0x(____ptrval____) (in kfence-#134): [ 49.101902] test_krealloc+0x6fc/0xbe0 [ 49.102142] kunit_try_run_case+0x1a5/0x480 [ 49.102333] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.102549] kthread+0x337/0x6f0 [ 49.102719] ret_from_fork+0x116/0x1d0 [ 49.102897] ret_from_fork_asm+0x1a/0x30 [ 49.103055] [ 49.103140] kfence-#134: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 49.103140] [ 49.103526] allocated by task 354 on cpu 1 at 49.100112s (0.003411s ago): [ 49.103880] test_alloc+0x364/0x10f0 [ 49.104095] test_krealloc+0xad/0xbe0 [ 49.104274] kunit_try_run_case+0x1a5/0x480 [ 49.104432] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.104686] kthread+0x337/0x6f0 [ 49.104837] ret_from_fork+0x116/0x1d0 [ 49.105052] ret_from_fork_asm+0x1a/0x30 [ 49.105267] [ 49.105361] freed by task 354 on cpu 1 at 49.100376s (0.004983s ago): [ 49.105673] krealloc_noprof+0x108/0x340 [ 49.105873] test_krealloc+0x226/0xbe0 [ 49.106071] kunit_try_run_case+0x1a5/0x480 [ 49.106215] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.106547] kthread+0x337/0x6f0 [ 49.106735] ret_from_fork+0x116/0x1d0 [ 49.106907] ret_from_fork_asm+0x1a/0x30 [ 49.107458] [ 49.107581] CPU: 1 UID: 0 PID: 354 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 49.108353] Tainted: [B]=BAD_PAGE, [N]=TEST [ 49.108645] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 49.109006] ==================================================================