bisecting cause commit starting from eff48ddeab782e35e58ccc8853f7386bbae9dec4 building syzkaller on 3e8f6c27551f163a2fd2661e4b3cac126a5e7ef2 testing commit eff48ddeab782e35e58ccc8853f7386bbae9dec4 with gcc (GCC) 8.1.0 kernel signature: 0b9279f06dd1e8d9288b64147e229740e57a5ab18bd7e2e29c6747515fbc20cd run #0: crashed: WARNING: ODEBUG bug in __do_softirq run #1: crashed: WARNING in __proc_create run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in afs_deactivate_cell run #3: crashed: WARNING: ODEBUG bug in __do_softirq run #4: crashed: WARNING: ODEBUG bug in __do_softirq run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: general protection fault in afs_proc_cell_setup run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in afs_request_key run #8: OK run #9: OK testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: 6b6c4dc9feb62413fdd50878b6d79e346353d8f9c872bfd2def106391746959c run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in afs_manage_cell run #1: crashed: general protection fault in afs_proc_cell_setup run #2: crashed: WARNING in __xlate_proc_name run #3: crashed: WARNING: proc registration bug in afs_manage_cell run #4: crashed: BUG: unable to handle kernel paging request in afs_proc_cell_setup run #5: crashed: WARNING in __proc_create run #6: crashed: WARNING: proc registration bug in afs_manage_cell run #7: OK run #8: OK run #9: OK testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: af28a93716bb582ffa8f0e17d484a761ee8710ad1a0c5a4ac456279b1814a8be run #0: crashed: KASAN: use-after-free Write in afs_manage_cell run #1: crashed: KASAN: use-after-free Read in afs_deactivate_cell run #2: crashed: WARNING: ODEBUG bug in __do_softirq run #3: crashed: KASAN: use-after-free Write in afs_manage_cell run #4: crashed: WARNING: ODEBUG bug in __do_softirq run #5: crashed: WARNING: ODEBUG bug in __do_softirq run #6: crashed: WARNING: ODEBUG bug in __do_softirq run #7: crashed: WARNING: ODEBUG bug in __do_softirq run #8: OK run #9: OK testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: d6decdfa7d9773ac6f910bab8e6ddc9808bf304d1672d760f09292d8cc775bdd run #0: crashed: KASAN: use-after-free Write in afs_deactivate_cell run #1: crashed: WARNING: ODEBUG bug in __do_softirq run #2: crashed: KASAN: use-after-free Write in afs_manage_cell run #3: crashed: WARNING: ODEBUG bug in __do_softirq run #4: crashed: KASAN: use-after-free Write in afs_manage_cell run #5: crashed: KASAN: use-after-free Read in afs_deactivate_cell run #6: crashed: KASAN: use-after-free Write in afs_manage_cell run #7: crashed: KASAN: use-after-free Write in afs_manage_cell run #8: crashed: KASAN: use-after-free Write in afs_manage_cell run #9: crashed: KASAN: use-after-free Read in afs_deactivate_cell testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: 6d1c5c17309cd70c134df332c288396bfdb9ba3afbf549fa061c255287192b75 run #0: crashed: KASAN: use-after-free Write in afs_manage_cell run #1: crashed: KASAN: use-after-free Write in afs_manage_cell run #2: crashed: KASAN: use-after-free Write in afs_deactivate_cell run #3: crashed: KASAN: use-after-free Read in afs_deactivate_cell run #4: crashed: WARNING: proc registration bug in afs_manage_cell run #5: crashed: WARNING: ODEBUG bug in __do_softirq run #6: crashed: KASAN: use-after-free Write in afs_manage_cell run #7: crashed: KASAN: use-after-free Write in afs_deactivate_cell run #8: OK run #9: OK testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: cd5f5cf73425d3b31894c3897c4a355f8ec03ff4b6f57b207a0228c966fb7d9d run #0: crashed: KASAN: use-after-free Read in afs_manage_cell run #1: crashed: KASAN: use-after-free Write in afs_manage_cell run #2: crashed: KASAN: use-after-free Write in afs_manage_cell run #3: crashed: KASAN: use-after-free Read in afs_manage_cell run #4: crashed: WARNING: ODEBUG bug in __do_softirq run #5: crashed: WARNING: ODEBUG bug in __do_softirq run #6: crashed: KASAN: use-after-free Write in afs_manage_cell run #7: crashed: WARNING: ODEBUG bug in __do_softirq run #8: crashed: KASAN: use-after-free Write in afs_manage_cell run #9: crashed: WARNING: ODEBUG bug in __do_softirq testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 010a5a048f5a9325c27c3e654795e61f05189e2902fb34ea37cade7487da9c3a run #0: crashed: KASAN: use-after-free Write in afs_manage_cell run #1: crashed: KASAN: use-after-free Write in afs_deactivate_cell run #2: crashed: WARNING: ODEBUG bug in afs_cell_destroy run #3: crashed: WARNING: ODEBUG bug in afs_cell_destroy run #4: crashed: KASAN: use-after-free Write in afs_manage_cell run #5: crashed: KASAN: use-after-free Write in afs_manage_cell run #6: crashed: KASAN: use-after-free Read in afs_deactivate_cell run #7: crashed: INFO: rcu detected stall in sys_mount run #8: crashed: KASAN: use-after-free Write in afs_manage_cell run #9: crashed: KASAN: use-after-free Write in afs_manage_cell testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: dfc2a147e347aec831e9b0f2442608ed5aafa0c92c853137fdd5fe58a713eec9 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 kernel signature: 6bea6a2a707b8da8e69a25c99ffb7d748d4c5cebed763e3d9ccae90cf81e3771 run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: crashed: KASAN: use-after-free Write in afs_manage_cell run #9: crashed: KASAN: use-after-free Write in afs_deactivate_cell testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: bf49984a9cbb59c32fa1aedcf098fde1d6adcc274233e8300982bab6bb61c6fe all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 kernel signature: 7ed9ff8bbc0884955b43288af240792e3312f2b4a0a856706eb0aa474b1694f2 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: 17cce73b1f68926ae4716d2a3a409e7a2f301265770d631c85f9b28089514d27 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 kernel signature: 9a565248638ff9f65a7cb496c3499b724b2e873c1f6d54d5b77182a53251680e run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #9: OK testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 kernel signature: 55a6d99b03aec7147c50c0b25d7d3fa8a1f43845c7691950fe066f847e1f39da run #0: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #9: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 kernel signature: 095cfba5877e645d219c8a3660473e33ec6af43b2aca9e0ecd7887e47be3764e all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:36: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:38: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:41: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:44: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:47: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 arch/x86/entry/common.c:173: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/linux/compiler.h:254: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/linux/tracehook.h:190: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/linux/thread_info.h:60: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/trace/events/syscalls.h:17: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 kernel signature: 8f34a58b03ada39fa653e75d9633ee9d4fb413ec1b32ffeaa6ff76b1f7a7c5e9 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 kernel signature: 89aece157208d777fd3d0988840a2d43cb5012321d4da33ca92f16b7b5d48b62 run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #9: OK testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 kernel signature: fe42d35df672765a1040619711160276387ff4b8746d9b4dd50b8dbb36d47aa6 all runs: OK # git bisect start e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd 69973b830859bc6529a7a0468ba0d80ee5117826 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [5d8515bc232172963a4cef007e97b08c5e4d0533] Merge tag 'staging-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging testing commit 5d8515bc232172963a4cef007e97b08c5e4d0533 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 5d8515bc232172963a4cef007e97b08c5e4d0533 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [d682026dd3c548a408415cd75882e5d081147f5b] .gitignore: ignore ASN.1 auto generated files testing commit d682026dd3c548a408415cd75882e5d081147f5b with gcc (GCC) 8.1.0 kernel signature: ac2e76a0b9788aca3cd9a653e109863f5501ed199eb65ac0afa8c147fccf3bb8 run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #4: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #5: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #9: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset # git bisect skip d682026dd3c548a408415cd75882e5d081147f5b Bisecting: 95415 revisions left to test after this (roughly 17 steps) [db5ae1c155af7a76c9f538bf134066303089679d] powerpc/64s: Refine feature sets for little endian builds testing commit db5ae1c155af7a76c9f538bf134066303089679d with gcc (GCC) 8.1.0 kernel signature: 3e9d9a1821f1c6b7ed3bdef2efcd5ff685feb4d1ea74dff4659b7a2fca380e16 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset # git bisect skip db5ae1c155af7a76c9f538bf134066303089679d Bisecting: 95415 revisions left to test after this (roughly 17 steps) [47fcc0360cfb3fe82e4daddacad3c1cd80b0b75d] Merge tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core testing commit 47fcc0360cfb3fe82e4daddacad3c1cd80b0b75d with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 47fcc0360cfb3fe82e4daddacad3c1cd80b0b75d Bisecting: 95415 revisions left to test after this (roughly 17 steps) [c20a71a7a3841a6198721a0b4276f3298b38bbcf] bpf: sockmap remove unused function testing commit c20a71a7a3841a6198721a0b4276f3298b38bbcf with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip c20a71a7a3841a6198721a0b4276f3298b38bbcf Bisecting: 95415 revisions left to test after this (roughly 17 steps) [db5933225f2fe50d3b91ebbba73ed9c3b703b99a] Merge tag 'tty-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty testing commit db5933225f2fe50d3b91ebbba73ed9c3b703b99a with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip db5933225f2fe50d3b91ebbba73ed9c3b703b99a Bisecting: 95415 revisions left to test after this (roughly 17 steps) [ca79bec237f5809a7c3c59bd41cd0880aa889966] ipv6 sit: work around bogus gcc-8 -Wrestrict warning testing commit ca79bec237f5809a7c3c59bd41cd0880aa889966 with gcc (GCC) 8.1.0 kernel signature: 3b7b8fa057ed3e8e7780e69f15f4baf4da009f0a963dd6910daa503cae530e2d run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #1: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #2: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #4: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #9: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset # git bisect skip ca79bec237f5809a7c3c59bd41cd0880aa889966 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [f6cff79f1d122f78a4b35bf4b2f0112afcd89ea4] Merge tag 'char-misc-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc testing commit f6cff79f1d122f78a4b35bf4b2f0112afcd89ea4 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip f6cff79f1d122f78a4b35bf4b2f0112afcd89ea4 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [69cd58fa04bbbb191eb03761952238e2130ba2aa] ARM: dts: imx6: RDU2: detail USDHC description testing commit 69cd58fa04bbbb191eb03761952238e2130ba2aa with gcc (GCC) 8.1.0 kernel signature: 7cd16b62b966544d22a3afaeb719f9a115f58070c17182019c4e7b9a558b89af run #0: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #9: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset # git bisect skip 69cd58fa04bbbb191eb03761952238e2130ba2aa Bisecting: 95415 revisions left to test after this (roughly 17 steps) [eea43ed86f38347979446905a20792a8be7bf5d1] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input testing commit eea43ed86f38347979446905a20792a8be7bf5d1 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip eea43ed86f38347979446905a20792a8be7bf5d1 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [2312dbf7462bdc04b4dc26aef66c8413125c77f0] drivers/video/concole: add negative dependency for VGA_CONSOLE on nds32 testing commit 2312dbf7462bdc04b4dc26aef66c8413125c77f0 with gcc (GCC) 8.1.0 kernel signature: 81edfec53574a583b47945db01ec6678c66f31d758901c7b9f33a8e8ecd43191 run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #3: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #9: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset # git bisect skip 2312dbf7462bdc04b4dc26aef66c8413125c77f0 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [e4ee8b85b7657d9c769b727038faabdc2e6a3412] Merge tag 'usb-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb testing commit e4ee8b85b7657d9c769b727038faabdc2e6a3412 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip e4ee8b85b7657d9c769b727038faabdc2e6a3412 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [11a18f631959fd1ca10856c836a827683536770c] drm/i915: Avoid truncation before clamping userspace's priority value testing commit 11a18f631959fd1ca10856c836a827683536770c with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 11a18f631959fd1ca10856c836a827683536770c Bisecting: 95415 revisions left to test after this (roughly 17 steps) [2bed26606b61a7b20fc1cc54df53c48c06cd9aa8] Merge tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux testing commit 2bed26606b61a7b20fc1cc54df53c48c06cd9aa8 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 2bed26606b61a7b20fc1cc54df53c48c06cd9aa8 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [5aadc431a593ac1f3a026dfbceaa16cc4d5e15ca] shmem: rename functions that are memfd-related testing commit 5aadc431a593ac1f3a026dfbceaa16cc4d5e15ca with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 5aadc431a593ac1f3a026dfbceaa16cc4d5e15ca Bisecting: 95415 revisions left to test after this (roughly 17 steps) [06c8f7a7501ab3ae338a98ff8515b9f03160bea6] Merge tag 'kbuild-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild testing commit 06c8f7a7501ab3ae338a98ff8515b9f03160bea6 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 06c8f7a7501ab3ae338a98ff8515b9f03160bea6 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [bae30468dfc1522464f16051addd7bc7da6da75a] bpf: Add uniqueness invariant to trivial lpm test implementation testing commit bae30468dfc1522464f16051addd7bc7da6da75a with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:36: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:38: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:41: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:44: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:47: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip bae30468dfc1522464f16051addd7bc7da6da75a Bisecting: 95415 revisions left to test after this (roughly 17 steps) [a659f1598585071eed5c39485840b0f018c9f457] Merge tag 'kbuild-misc-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild testing commit a659f1598585071eed5c39485840b0f018c9f457 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip a659f1598585071eed5c39485840b0f018c9f457 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [100ef01f3ea4badbee6479290a41f74abd0e523f] net/ncsi: Disable HWA mode when no channels are found testing commit 100ef01f3ea4badbee6479290a41f74abd0e523f with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:36: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:38: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:41: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:44: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:47: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 100ef01f3ea4badbee6479290a41f74abd0e523f Bisecting: 95415 revisions left to test after this (roughly 17 steps) [562f36ed28e6faa4245ea2ca1392d90ab98ebbe8] Merge tag 'kconfig-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild testing commit 562f36ed28e6faa4245ea2ca1392d90ab98ebbe8 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 562f36ed28e6faa4245ea2ca1392d90ab98ebbe8 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [2bece88f89faad8d2e5499652e2bd5f2045ec92a] kconfig: test: add Kconfig macro language tests testing commit 2bece88f89faad8d2e5499652e2bd5f2045ec92a with gcc (GCC) 8.1.0 kernel signature: dd5ed4ea7bc2a846b26bf23341cb6ebe2025b7b5c7d850c6ea3aab21fa45cdf8 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset # git bisect skip 2bece88f89faad8d2e5499652e2bd5f2045ec92a Bisecting: 95415 revisions left to test after this (roughly 17 steps) [8e44e6600caa7b96a5b71ae36c8829db753c2d70] Merge branch 'KASAN-read_word_at_a_time' testing commit 8e44e6600caa7b96a5b71ae36c8829db753c2d70 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 8e44e6600caa7b96a5b71ae36c8829db753c2d70 Bisecting: 95415 revisions left to test after this (roughly 17 steps) [cabfb09d87bd7980cb4e39bd2ce679a788eb7e7a] bnxt_en: add debugfs support for DIM testing commit cabfb09d87bd7980cb4e39bd2ce679a788eb7e7a with gcc (GCC) 8.1.0 kernel signature: 20a5f7dc863ef5df28563a56d38931d1cde56ec4d48bae7e736dddd2e0339088 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset # git bisect skip cabfb09d87bd7980cb4e39bd2ce679a788eb7e7a Bisecting: 95415 revisions left to test after this (roughly 17 steps) [27529c891b132f4fc65711334e885f466138ea2a] Merge tag 'trace-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace testing commit 27529c891b132f4fc65711334e885f466138ea2a with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' # git bisect skip 27529c891b132f4fc65711334e885f466138ea2a Bisecting: 95415 revisions left to test after this (roughly 17 steps) [838c07b05b369b3ee6bb18cdc1aec1241a1ef951] mtd: rawnand: lpc32xx_mlc: fix the probe function error path revisions tested: 46, total time: 8h5m1.923641441s (build: 4h18m58.133768893s, test: 2h28m9.590483554s) error: bisection is taking too long (>8h0m0s), aborting