| 30be771c-9661-4c2b-9867-eabfacf224b1 |
assessment-security |
|
💥 |
BUG: soft lockup in pipe_read |
2026/05/26 12:48 |
2026/05/26 12:48 |
2026/05/26 13:06 |
c69befb30ac10e158cc9d1557b508ee3f0eca1de |
failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/ddc9086063c9b51b1c367e3c22e2db6de23a5260" "-s" "bzImage" "compile_commands.json"]: exit status 2
Root cause:
ld.lld: error: undefined symbol: wcslen
*
* Restart config...
*
*
* General setup
*
Compile also drivers which will not load (COMPILE_TEST) [N/y/?] n
Compile the kernel with warnings as errors (WERROR) [N/y/?] n
Local version - append to kernel release (LOCALVERSION) []
Automatically append version information to the version string (LOCALVERSION_AUTO) [Y/n/?] y
Build ID Salt (BUILD_SALT) []
Kernel compression mode
> 1. Gzip (KERNEL_GZIP) (NEW)
2. Bzip2 (KERNEL_BZIP2) (NEW)
3. LZMA (KERNEL_LZMA) (NEW)
4. XZ (KERNEL_XZ) (NEW)
5. LZO (KERNEL_LZO) (NEW)
6. LZ4 (KERNEL_LZ4) (NEW)
7. ZSTD (KERNEL_ZSTD) (NEW)
choice[1-7?]:
Error in reading or end of file.
Default init path (DEFAULT_INIT) []
Default hostname (DEFAULT_HOSTNAME) [(none)] (none)
System V IPC (SYSVIPC) [Y/n/?] y
POSIX Message Queues (POSIX_MQUEUE) [Y/n/?] y
General notification queue (WATCH_QUEUE) [Y/n/?] y
Enable process_vm_readv/writev syscalls (CROSS_MEMORY_ATTACH) [Y/n/?] y
uselib syscall (for libc5 and earlier) (USELIB) [N/y/?] n
Auditing support (AUDIT) [Y/n/?] y
*
* Timers subsystem
*
Timer tick handling
1. Periodic timer ticks (constant rate, no dynticks) (HZ_PERIODIC)
> 2. Idle dynticks system (tickless idle) (NO_HZ_IDLE)
3. Full dynticks system (tickless) (NO_HZ_FULL)
choice[1-3?]: 2
Force user context tracking (CONTEXT_TRACKING_USER_FORCE) [N/y/?] n
Old Idle dynticks config (NO_HZ) [Y/n/?] y
High Resolution Timer Support (HIGH_RES_TIMERS) [Y/n/?] y
Clocksource watchdog maximum allowable skew (in microseconds) (CLOCKSOURCE_WATCHDOG_MAX_SKEW_US) [125] (NEW)
Error in reading or end of file.
Preemption Model
1. No Forced Preemption (Server) (PREEMPT_NONE)
2. Voluntary Kernel Preemption (Desktop) (PREEMPT_VOLUNTARY)
> 3. Preemptible Kernel (Low-Latency Desktop) (PREEMPT)
4. Scheduler controlled preemption model (PREEMPT_LAZY) (NEW)
choice[1-4?]:
Error in reading or end of file.
Fully Preemptible Kernel (Real-Time) (PREEMPT_RT) [N/y/?] n
Preemption behaviour defined on boot (PREEMPT_DYNAMIC) [N/y/?] n
Core Scheduling for SMT (SCHED_CORE) [N/y/?] n
CPU isolation (CPU_ISOLATION) [Y/n/?] y
Kernel .config support (IKCONFIG) [Y/n/m/?] y
Enable access to .config through /proc/config.gz (IKCONFIG_PROC) [Y/n/?] y
Enable kernel headers through /sys/kernel/kheaders.tar.xz (IKHEADERS) [N/m/y/?] n
Kernel log buffer size (16 => 64KB, 17 => 128KB) (LOG_BUF_SHIFT) [18] 18
CPU kernel log buffer size contribution (13 => 8 KB, 17 => 128KB) (LOG_CPU_MAX_BUF_SHIFT) [12] 12
Printk indexing debugfs interface (PRINTK_INDEX) [N/y/?] n
Memory placement aware NUMA scheduler (NUMA_BALANCING) [Y/n/?] y
Automatically enable NUMA aware memory/task placement (NUMA_BALANCING_DEFAULT_ENABLED) [Y/n/?] y
Checkpoint/restore support (CHECKPOINT_RESTORE) [Y/n/?] y
Automatic process group scheduling (SCHED_AUTOGROUP) [Y/n/?] y
Kernel->user space relay support (formerly relayfs) (RELAY) [Y/?] y
Initial RAM filesystem and RAM disk (initramfs/initrd) support (BLK_DEV_INITRD) [Y/n/?] y
Initramfs source file(s) (INITRAMFS_SOURCE) []
Support initial ramdisk/ramfs compressed using gzip (RD_GZIP) [Y/n/?] y
Support initial ramdisk/ramfs compressed using bzip2 (RD_BZIP2) [Y/n/?] y
Support initial ramdisk/ramfs compressed using LZMA (RD_LZMA) [Y/n/?] y
Support initial ramdisk/ramfs compressed using XZ (RD_XZ) [Y/n/?] y
Support initial ramdisk/ramfs compressed using LZO (RD_LZO) [Y/n/?] y
Support initial ramdisk/ramfs compressed using LZ4 (RD_LZ4) [Y/n/?] y
Support initial ramdisk/ramfs compressed using ZSTD (RD_ZSTD) [Y/n/?] y
Boot config support (BOOT_CONFIG) [N/y/?] n
Preserve cpio archive mtimes in initramfs (INITRAMFS_PRESERVE_MTIME) [Y/n/?] y
Compiler optimization level
> 1. Optimize for performance (-O2) (CC_OPTIMIZE_FOR_PERFORMANCE)
2. Optimize for size (-Os) (CC_OP |