Date
July 23, 2025, 2:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.103668] ================================================================== [ 20.103747] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 20.103747] [ 20.104008] Use-after-free read at 0x00000000cafbe188 (in kfence-#88): [ 20.104211] test_use_after_free_read+0x114/0x248 [ 20.104271] kunit_try_run_case+0x170/0x3f0 [ 20.104498] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.104570] kthread+0x328/0x630 [ 20.104670] ret_from_fork+0x10/0x20 [ 20.104716] [ 20.104785] kfence-#88: 0x00000000cafbe188-0x0000000051b10ac4, size=32, cache=test [ 20.104785] [ 20.104866] allocated by task 297 on cpu 0 at 20.103493s (0.001343s ago): [ 20.104954] test_alloc+0x230/0x628 [ 20.104998] test_use_after_free_read+0xd0/0x248 [ 20.105138] kunit_try_run_case+0x170/0x3f0 [ 20.105302] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.105369] kthread+0x328/0x630 [ 20.105435] ret_from_fork+0x10/0x20 [ 20.105521] [ 20.105583] freed by task 297 on cpu 0 at 20.103552s (0.002026s ago): [ 20.105704] test_use_after_free_read+0xf0/0x248 [ 20.105776] kunit_try_run_case+0x170/0x3f0 [ 20.105837] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.105912] kthread+0x328/0x630 [ 20.105966] ret_from_fork+0x10/0x20 [ 20.106008] [ 20.106099] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 20.106178] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.106206] Hardware name: linux,dummy-virt (DT) [ 20.106251] ================================================================== [ 19.992964] ================================================================== [ 19.993327] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 19.993327] [ 19.993600] Use-after-free read at 0x00000000221889d3 (in kfence-#87): [ 19.993695] test_use_after_free_read+0x114/0x248 [ 19.993906] kunit_try_run_case+0x170/0x3f0 [ 19.994114] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.994187] kthread+0x328/0x630 [ 19.994231] ret_from_fork+0x10/0x20 [ 19.994417] [ 19.994580] kfence-#87: 0x00000000221889d3-0x000000005f00220b, size=32, cache=kmalloc-32 [ 19.994580] [ 19.994877] allocated by task 295 on cpu 0 at 19.992552s (0.002287s ago): [ 19.995066] test_alloc+0x29c/0x628 [ 19.995185] test_use_after_free_read+0xd0/0x248 [ 19.995262] kunit_try_run_case+0x170/0x3f0 [ 19.995460] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.995673] kthread+0x328/0x630 [ 19.995829] ret_from_fork+0x10/0x20 [ 19.996023] [ 19.996458] freed by task 295 on cpu 0 at 19.992623s (0.003582s ago): [ 19.997219] test_use_after_free_read+0x1c0/0x248 [ 19.997322] kunit_try_run_case+0x170/0x3f0 [ 19.997996] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.998145] kthread+0x328/0x630 [ 19.998497] ret_from_fork+0x10/0x20 [ 19.998586] [ 19.999081] CPU: 0 UID: 0 PID: 295 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 19.999174] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.999204] Hardware name: linux,dummy-virt (DT) [ 19.999535] ==================================================================
[ 18.836691] ================================================================== [ 18.837127] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 18.837127] [ 18.837600] Use-after-free read at 0x(____ptrval____) (in kfence-#79): [ 18.837877] test_use_after_free_read+0x129/0x270 [ 18.838105] kunit_try_run_case+0x1a5/0x480 [ 18.838323] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.838544] kthread+0x337/0x6f0 [ 18.838706] ret_from_fork+0x116/0x1d0 [ 18.838908] ret_from_fork_asm+0x1a/0x30 [ 18.839090] [ 18.839177] kfence-#79: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 18.839177] [ 18.839548] allocated by task 314 on cpu 1 at 18.836548s (0.002998s ago): [ 18.839840] test_alloc+0x2a6/0x10f0 [ 18.840031] test_use_after_free_read+0xdc/0x270 [ 18.840269] kunit_try_run_case+0x1a5/0x480 [ 18.840458] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.840674] kthread+0x337/0x6f0 [ 18.840799] ret_from_fork+0x116/0x1d0 [ 18.840951] ret_from_fork_asm+0x1a/0x30 [ 18.841113] [ 18.841212] freed by task 314 on cpu 1 at 18.836611s (0.004597s ago): [ 18.841647] test_use_after_free_read+0xfb/0x270 [ 18.841839] kunit_try_run_case+0x1a5/0x480 [ 18.841988] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.842322] kthread+0x337/0x6f0 [ 18.842498] ret_from_fork+0x116/0x1d0 [ 18.842695] ret_from_fork_asm+0x1a/0x30 [ 18.842911] [ 18.843036] CPU: 1 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 18.843610] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.843773] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.844173] ================================================================== [ 18.732675] ================================================================== [ 18.733178] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 18.733178] [ 18.733651] Use-after-free read at 0x(____ptrval____) (in kfence-#78): [ 18.733957] test_use_after_free_read+0x129/0x270 [ 18.734153] kunit_try_run_case+0x1a5/0x480 [ 18.734369] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.734620] kthread+0x337/0x6f0 [ 18.734829] ret_from_fork+0x116/0x1d0 [ 18.734970] ret_from_fork_asm+0x1a/0x30 [ 18.735248] [ 18.735352] kfence-#78: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 18.735352] [ 18.735801] allocated by task 312 on cpu 0 at 18.732456s (0.003343s ago): [ 18.736118] test_alloc+0x364/0x10f0 [ 18.736295] test_use_after_free_read+0xdc/0x270 [ 18.736496] kunit_try_run_case+0x1a5/0x480 [ 18.736709] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.736978] kthread+0x337/0x6f0 [ 18.737170] ret_from_fork+0x116/0x1d0 [ 18.737353] ret_from_fork_asm+0x1a/0x30 [ 18.737524] [ 18.737634] freed by task 312 on cpu 0 at 18.732529s (0.005100s ago): [ 18.737966] test_use_after_free_read+0x1e7/0x270 [ 18.738206] kunit_try_run_case+0x1a5/0x480 [ 18.738421] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.738672] kthread+0x337/0x6f0 [ 18.738853] ret_from_fork+0x116/0x1d0 [ 18.739039] ret_from_fork_asm+0x1a/0x30 [ 18.739181] [ 18.739280] CPU: 0 UID: 0 PID: 312 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 18.740446] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.740665] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.741020] ==================================================================