Date
July 8, 2025, 4:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.039604] ================================================================== [ 22.039715] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 22.039715] [ 22.039813] Use-after-free read at 0x00000000e61fd231 (in kfence-#88): [ 22.039916] test_use_after_free_read+0x114/0x248 [ 22.039970] kunit_try_run_case+0x170/0x3f0 [ 22.040038] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.040445] kthread+0x328/0x630 [ 22.040551] ret_from_fork+0x10/0x20 [ 22.040599] [ 22.040625] kfence-#88: 0x00000000e61fd231-0x00000000c873faf0, size=32, cache=kmalloc-32 [ 22.040625] [ 22.041025] allocated by task 297 on cpu 0 at 22.038761s (0.002226s ago): [ 22.041134] test_alloc+0x29c/0x628 [ 22.041271] test_use_after_free_read+0xd0/0x248 [ 22.041318] kunit_try_run_case+0x170/0x3f0 [ 22.041898] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.041998] kthread+0x328/0x630 [ 22.042110] ret_from_fork+0x10/0x20 [ 22.042151] [ 22.042186] freed by task 297 on cpu 0 at 22.039239s (0.002941s ago): [ 22.042310] test_use_after_free_read+0x1c0/0x248 [ 22.042398] kunit_try_run_case+0x170/0x3f0 [ 22.042440] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.042504] kthread+0x328/0x630 [ 22.042553] ret_from_fork+0x10/0x20 [ 22.042592] [ 22.042642] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT [ 22.042723] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.042771] Hardware name: linux,dummy-virt (DT) [ 22.042814] ================================================================== [ 22.142913] ================================================================== [ 22.143023] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 22.143023] [ 22.143153] Use-after-free read at 0x00000000108af4e4 (in kfence-#89): [ 22.143579] test_use_after_free_read+0x114/0x248 [ 22.143649] kunit_try_run_case+0x170/0x3f0 [ 22.143777] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.143828] kthread+0x328/0x630 [ 22.143872] ret_from_fork+0x10/0x20 [ 22.144170] [ 22.144216] kfence-#89: 0x00000000108af4e4-0x00000000b32968d4, size=32, cache=test [ 22.144216] [ 22.144360] allocated by task 299 on cpu 0 at 22.142408s (0.001914s ago): [ 22.144652] test_alloc+0x230/0x628 [ 22.144820] test_use_after_free_read+0xd0/0x248 [ 22.144968] kunit_try_run_case+0x170/0x3f0 [ 22.145053] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.145295] kthread+0x328/0x630 [ 22.145587] ret_from_fork+0x10/0x20 [ 22.145797] [ 22.146036] freed by task 299 on cpu 0 at 22.142503s (0.003519s ago): [ 22.146242] test_use_after_free_read+0xf0/0x248 [ 22.146331] kunit_try_run_case+0x170/0x3f0 [ 22.146674] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.147112] kthread+0x328/0x630 [ 22.147266] ret_from_fork+0x10/0x20 [ 22.147371] [ 22.147624] CPU: 0 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT [ 22.147869] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.147942] Hardware name: linux,dummy-virt (DT) [ 22.147987] ==================================================================
[ 16.269460] ================================================================== [ 16.269997] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 16.269997] [ 16.270437] Use-after-free read at 0x(____ptrval____) (in kfence-#68): [ 16.271062] test_use_after_free_read+0x129/0x270 [ 16.271457] kunit_try_run_case+0x1a5/0x480 [ 16.272021] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.272283] kthread+0x337/0x6f0 [ 16.272471] ret_from_fork+0x41/0x80 [ 16.272753] ret_from_fork_asm+0x1a/0x30 [ 16.273123] [ 16.273319] kfence-#68: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 16.273319] [ 16.273792] allocated by task 315 on cpu 1 at 16.269232s (0.004557s ago): [ 16.274218] test_alloc+0x364/0x10f0 [ 16.274396] test_use_after_free_read+0xdc/0x270 [ 16.274795] kunit_try_run_case+0x1a5/0x480 [ 16.275114] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.275460] kthread+0x337/0x6f0 [ 16.275769] ret_from_fork+0x41/0x80 [ 16.276056] ret_from_fork_asm+0x1a/0x30 [ 16.276338] [ 16.276523] freed by task 315 on cpu 1 at 16.269295s (0.007225s ago): [ 16.276932] test_use_after_free_read+0x1e7/0x270 [ 16.277160] kunit_try_run_case+0x1a5/0x480 [ 16.277488] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.277847] kthread+0x337/0x6f0 [ 16.278121] ret_from_fork+0x41/0x80 [ 16.278312] ret_from_fork_asm+0x1a/0x30 [ 16.278667] [ 16.278907] CPU: 1 UID: 0 PID: 315 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT(voluntary) [ 16.279467] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.279692] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.280087] ================================================================== [ 16.373424] ================================================================== [ 16.374048] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 16.374048] [ 16.374428] Use-after-free read at 0x(____ptrval____) (in kfence-#69): [ 16.374706] test_use_after_free_read+0x129/0x270 [ 16.374998] kunit_try_run_case+0x1a5/0x480 [ 16.375192] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.375450] kthread+0x337/0x6f0 [ 16.376197] ret_from_fork+0x41/0x80 [ 16.376362] ret_from_fork_asm+0x1a/0x30 [ 16.376720] [ 16.376920] kfence-#69: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 16.376920] [ 16.377414] allocated by task 317 on cpu 0 at 16.373204s (0.004206s ago): [ 16.377989] test_alloc+0x2a6/0x10f0 [ 16.378173] test_use_after_free_read+0xdc/0x270 [ 16.378381] kunit_try_run_case+0x1a5/0x480 [ 16.378579] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.379137] kthread+0x337/0x6f0 [ 16.379287] ret_from_fork+0x41/0x80 [ 16.379655] ret_from_fork_asm+0x1a/0x30 [ 16.379949] [ 16.380038] freed by task 317 on cpu 0 at 16.373249s (0.006786s ago): [ 16.380530] test_use_after_free_read+0xfb/0x270 [ 16.380763] kunit_try_run_case+0x1a5/0x480 [ 16.380976] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.381216] kthread+0x337/0x6f0 [ 16.381371] ret_from_fork+0x41/0x80 [ 16.381843] ret_from_fork_asm+0x1a/0x30 [ 16.382055] [ 16.382173] CPU: 0 UID: 0 PID: 317 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT(voluntary) [ 16.382805] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.383086] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.383530] ==================================================================