ci2 starts bisection 2026-07-30 20:54:13.35513942 +0000 UTC m=+11645.197609143
bisecting cause commit starting from 11028ab62899e4191e074ee364c712b77823a9c4
building syzkaller on 2377cd3dcd3c2e96dc5bd3c92c152122cdd05d7a
ensuring issue is reproducible on original commit 11028ab62899e4191e074ee364c712b77823a9c4

testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 9f22d4785232d5d4ef108bf12f1dbc84d9fba7cde5a5413737f2e76f14681ed8
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 775d9099ea7fe8c6943be7e2e39ff1c383682d97dd4951e8f64f669a0e24a5c0
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
the bug reproduces without the instrumentation
disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed
kconfig minimization: base=4140 full=8397 leaves diff=2111
split chunks (needed=false): <2111>
split chunk #0 of len 2111 into 5 parts
testing without sub-chunk 1/5
disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed
testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 8ed109f077f74c5e0ee716e9cfe4d9d0b4799d6a7b0aa2f860133b83a2519f62
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [locking atomic_sleep hang memleak ubsan kasan], they are not needed
testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 959aca3380a4e3f87ad68caff1396a25543bd8832ce2c14743f0b2e011b0622f
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: a0a4f896e2bb1b0c378677f1872977b2108f62dbe0bb6aea56a84cb52f578914
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [locking atomic_sleep hang memleak ubsan kasan], they are not needed
testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 520bd6377e60a33ec252ddf50bd3b66ffb7297a49a09c19eb979fab23f560311
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed
testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 7ba630aa4949a6b72fb3ab731b1527d89380c67b0ff726e624a6040e18110778
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
the chunk can be dropped
disabling configs for [locking atomic_sleep hang memleak ubsan kasan], they are not needed
picked [v7.1 v7.0 v6.19 v6.17 v6.15 v6.13 v6.11 v6.9 v6.6 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 44 release tags
testing release v7.1
testing commit 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 41b706e33cfc5ebc68201b9946a943f6095d54922370f47be299735a6ed96f88
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v7.0
testing commit 028ef9c96e96197026887c0f092424679298aae8 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: a3b8e02d3c1c21d25754b6da48119fd3a5b3dc9b36ff6fc6827481ae62f54f2d
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.19
testing commit 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 02ffddc3a4f5b20b71f4361db35a487df4eb0f34d5a9595fefb24fe6bd15e328
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.17
testing commit e5f0a698b34ed76002dc5cff3804a61c80233a7a gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 53ced7d1feb3d60287b3d523390b635af9ee97f5cd1bc5596f9273c5416b26ba
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.15
testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: c03c6569c3b4285214932604c1048ecc6223d5aada5a7fc847f337ee95a41d84
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.13
testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 02d67456a9de81b239209b294a2b57a9e37d083f09be2b0b0fee24cc62b24e7b
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.11
testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: dad6dca295f1eeb6f26d7bda80b8ed48168143d11acd089e2bb6920bd2df1909
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.9
testing commit a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 643ce93e883c26788fd8c92cf006a4688f0f5c988597e7fc789923b887cb7370
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vp_del_vqs
representative crash: BUG: unable to handle kernel NULL pointer dereference in vp_del_vqs, types: [NULL-POINTER-DEREFERENCE]
testing release v6.6
testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: f8f146f70e95059ad11faeb3e642571a4d6e43e57b0ef939cbe563b868ff909b
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.3
testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 3bdeb5196371f6c367bd21e51ddd7c42dd3230777c464858ac6438c99655214b
all runs: crashed: WARNING in virtio_dev_remove
representative crash: WARNING in virtio_dev_remove, types: [WARNING]
testing release v6.0
testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
failed building 4fe89d07dcc2804c8b562f6c7896a45643d34b2f: ld.lld: error: version script assignment of 'LINUX_2.6' to symbol '__vdso_sgx_enter_enclave' failed: symbol not defined
llvm-objdump: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory
llvm-objcopy: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory
testing release v5.17
testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
failed building f443e374ae131c168a065ea1748feac6b2e76613: scripts/sign-file.c:89:14: warning: 'ERR_get_error_line' is deprecated [-Wdeprecated-declarations]
/usr/include/openssl/err.h:425:1: note: 'ERR_get_error_line' has been explicitly marked deprecated here
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated [-Wdeprecated-declarations]
certs/extract-cert.c:46:14: warning: 'ERR_get_error_line' is deprecated [-Wdeprecated-declarations]
certs/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated [-Wdeprecated-declarations]
ld.lld: error: version script assignment of 'LINUX_2.6' to symbol '__vdso_sgx_enter_enclave' failed: symbol not defined
llvm-objdump: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory
llvm-objcopy: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory
testing release v5.14
testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 4c6c697f694a9ffea5bc2fa871bc7ac641c9b0136952a05a7d0f33241bbdf95f
all runs: boot failed: kernel BUG in public_key_verify_signature
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 5ae17613208a8a2c5b96ed53e05dbea7ad45db17028759eed960e689ca6147d2
all runs: boot failed: kernel BUG in public_key_verify_signature
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc
compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: d8178661f01f18349b33fdb6dc8eaf21ebfd2757277eee5f35b56faba6d7cc05
all runs: boot failed: kernel BUG in public_key_verify_signature
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc
compiler: gcc (GCC) 8.4.1 20210217
failed building d5226fa6dbae0569ee43ecfc08bdcd6770fc4755: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
tools/include/linux/string.h:20:15: error: redundant redeclaration of 'strlcpy' [-Werror=redundant-decls]
testing release v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 gcc
compiler: gcc (GCC) 8.4.1 20210217
failed building 0ecfebd2b52404ae0c54a878c872bb93363ada36: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
tools/include/linux/string.h:17:15: error: redundant redeclaration of 'strlcpy' [-Werror=redundant-decls]
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be gcc
compiler: gcc (GCC) 8.4.1 20210217
failed building 8fe28cb58bcb235034b64cbbb7550a8a43fd88be: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
tools/include/linux/string.h:17:15: error: redundant redeclaration of 'strlcpy' [-Werror=redundant-decls]
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d gcc
compiler: gcc (GCC) 8.4.1 20210217
failed building 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
tools/include/linux/string.h:17:15: error: redundant redeclaration of 'strlcpy' [-Werror=redundant-decls]
revisions tested: 20, total time: 5h0m36.699281732s (build: 1h25m21.309969698s, test: 2h48m38.004543656s)
error: oldest tested release had kernel build, boot or test errors