Warning: Permanently added '10.128.1.140' (ED25519) to the list of known hosts. executing program syzkaller login: [ 45.540877][ T4020] loop0: detected capacity change from 0 to 4096 [ 45.603267][ T4020] ntfs: (device loop0): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. [ 45.611074][ T4020] ntfs: (device loop0): ntfs_is_extended_system_file(): Non-resident file name. You should run chkdsk. [ 45.614295][ T4020] ntfs: (device loop0): ntfs_read_locked_inode(): $DATA attribute is missing. [ 45.616689][ T4020] ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -2. Marking corrupt inode 0x1 as bad. Run chkdsk. [ 45.620286][ T4020] ntfs: (device loop0): load_system_files(): Failed to load $MFTMirr. Mounting read-only. Run ntfsfix and/or chkdsk. [ 45.634254][ T4020] ntfs: volume version 3.1. [ 45.638037][ T4020] ntfs: (device loop0): load_and_init_quota(): Failed to find inode number for $Quota. [ 45.640666][ T4020] ntfs: (device loop0): load_system_files(): Failed to load $Quota. Will not be able to remount read-write. Run chkdsk. [ 45.657726][ T4019] ntfs: (device loop0): ntfs_ucstonls(): Unicode name contains characters that cannot be converted to character set macinuit. You might want to try to use the mount option nls=utf8. [ 45.663754][ T4019] ntfs: (device loop0): ntfs_filldir(): Skipping unrepresentable inode 0x4. [ 45.669730][ T4019] ntfs: (device loop0): ntfs_lookup(): ntfs_lookup_ino_by_name() failed with error code -24. [ 45.672797][ T4019] ================================================================== [ 45.675011][ T4019] BUG: KASAN: null-ptr-deref in step_into+0x164/0xc20 [ 45.676794][ T4019] Read of size 4 at addr 0000000000000018 by task syz-executor272/4019 [ 45.678952][ T4019] [ 45.679591][ T4019] CPU: 1 PID: 4019 Comm: syz-executor272 Not tainted 5.15.179-syzkaller #0 [ 45.681940][ T4019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 45.684692][ T4019] Call trace: [ 45.685601][ T4019] dump_backtrace+0x0/0x530 [ 45.686846][ T4019] show_stack+0x2c/0x3c [ 45.687941][ T4019] dump_stack_lvl+0x108/0x170 [ 45.689234][ T4019] kasan_report+0x168/0x1e4 [ 45.690467][ T4019] kasan_check_range+0x274/0x2b4 [ 45.691719][ T4019] __kasan_check_read+0x44/0x54 [ 45.693078][ T4019] step_into+0x164/0xc20 [ 45.694235][ T4019] walk_component+0x214/0x4cc [ 45.695515][ T4019] path_lookupat+0x13c/0x3d0 [ 45.696780][ T4019] filename_lookup+0x1c4/0x4c8 [ 45.698069][ T4019] user_path_at_empty+0x5c/0x1a4 [ 45.699408][ T4019] __arm64_sys_umount+0xf8/0x17c [ 45.700723][ T4019] invoke_syscall+0x98/0x2b8 [ 45.701998][ T4019] el0_svc_common+0x138/0x258 [ 45.703277][ T4019] do_el0_svc+0x58/0x14c [ 45.704544][ T4019] el0_svc+0x7c/0x1f0 [ 45.705610][ T4019] el0t_64_sync_handler+0x84/0xe4 [ 45.706997][ T4019] el0t_64_sync+0x1a0/0x1a4 [ 45.708269][ T4019] ================================================================== [ 45.710465][ T4019] Disabling lock debugging due to kernel taint [ 45.712235][ T4019] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018 [ 45.714956][ T4019] Mem abort info: [ 45.715990][ T4019] ESR = 0x0000000096000004 [ 45.717239][ T4019] EC = 0x25: DABT (current EL), IL = 32 bits [ 45.718962][ T4019] SET = 0, FnV = 0 [ 45.719916][ T4019] EA = 0, S1PTW = 0 [ 45.720966][ T4019] FSC = 0x04: level 0 translation fault [ 45.722455][ T4019] Data abort info: [ 45.723613][ T4019] ISV = 0, ISS = 0x00000004 [ 45.724852][ T4019] CM = 0, WnR = 0 [ 45.725862][ T4019] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000114038000 [ 45.727877][ T4019] [0000000000000018] pgd=0000000000000000, p4d=0000000000000000 [ 45.729984][ T4019] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 45.731840][ T4019] Modules linked in: [ 45.732890][ T4019] CPU: 1 PID: 4019 Comm: syz-executor272 Tainted: G B 5.15.179-syzkaller #0 [ 45.735582][ T4019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 45.738379][ T4019] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 45.740474][ T4019] pc : step_into+0x164/0xc20 [ 45.741689][ T4019] lr : step_into+0x164/0xc20 [ 45.742954][ T4019] sp : ffff80001fbc77a0 [ 45.744071][ T4019] x29: ffff80001fbc78c0 x28: 0000000000000018 x27: 0000000000000080 [ 45.746238][ T4019] x26: ffff80001fbc7870 x25: 1ffff00003f78f0f x24: 0000000000000000 [ 45.748450][ T4019] x23: dfff800000000000 x22: ffff80001fbc7878 x21: 1ffff00003f78f63 [ 45.750622][ T4019] x20: ffff80001fbc7b18 x19: ffff80001fbc7ae0 x18: 0000000000000002 [ 45.752778][ T4019] x17: 0000000000000000 x16: ffff80000824f3a0 x15: 00000000ffffffff [ 45.754946][ T4019] x14: ffff0000cb8f0000 x13: 0000000000000001 x12: ffff700002e3ad64 [ 45.757202][ T4019] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 45.759364][ T4019] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000001 [ 45.761493][ T4019] x5 : ffff80001fbc6e38 x4 : 0000000000000000 x3 : ffff80000819cb88 [ 45.763687][ T4019] x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 [ 45.765905][ T4019] Call trace: [ 45.766766][ T4019] step_into+0x164/0xc20 [ 45.767920][ T4019] walk_component+0x214/0x4cc [ 45.769195][ T4019] path_lookupat+0x13c/0x3d0 [ 45.770406][ T4019] filename_lookup+0x1c4/0x4c8 [ 45.771640][ T4019] user_path_at_empty+0x5c/0x1a4 [ 45.773003][ T4019] __arm64_sys_umount+0xf8/0x17c [ 45.774388][ T4019] invoke_syscall+0x98/0x2b8 [ 45.775598][ T4019] el0_svc_common+0x138/0x258 [ 45.776902][ T4019] do_el0_svc+0x58/0x14c [ 45.778086][ T4019] el0_svc+0x7c/0x1f0 [ 45.779177][ T4019] el0t_64_sync_handler+0x84/0xe4 [ 45.780597][ T4019] el0t_64_sync+0x1a0/0x1a4 [ 45.781845][ T4019] Code: f9406ffc 52800081 aa1c03e0 97fc67b0 (88dfff9c) [ 45.783734][ T4019] ---[ end trace 7ad8128069dcd6cf ]--- [ 46.094890][ T4019] Kernel panic - not syncing: Oops: Fatal exception [ 46.096777][ T4019] SMP: stopping secondary CPUs [ 46.098139][ T4019] Kernel Offset: disabled [ 46.099306][ T4019] CPU features: 0x8,000081c1,21302e40 [ 46.100825][ T4019] Memory Limit: none [ 46.384085][ T4019] Rebooting in 86400 seconds..