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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "UBSAN:array-index-out-of-bounds_in_fs/nfsd/nfssvc.c" on: commit: 48d45b8a92098fd0ace1915e822b6a911d68e9f0 ("nfsd: don't allocate the versions array.") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master cd19ac2f903276b820f5d0d89de0c896c27036ed] in testcase: boot compiler: gcc-13 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +-----------------------------------------------------+------------+------------+ | | 380cca57af | 48d45b8a92 | +-----------------------------------------------------+------------+------------+ | UBSAN:array-index-out-of-bounds_in_fs/nfsd/nfssvc.c | 0 | 12 | +-----------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202408011636.9b233ef3-lkp@intel.com [ 4.884788][ T1] ------------[ cut here ]------------ [ 4.886401][ T1] UBSAN: array-index-out-of-bounds in fs/nfsd/nfssvc.c:136:22 [ 4.888944][ T1] index 4 is out of range for type 'svc_version *[4]' [ 4.890804][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.11.0-rc1-00011-g48d45b8a9209 #1 49a9f3c8c569f643764c5d3c5c4fd0ac6de5811a [ 4.894224][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 4.894294][ T1] Call Trace: [ 4.894294][ T1] dump_stack_lvl (lib/dump_stack.c:122) [ 4.894294][ T1] dump_stack (lib/dump_stack.c:129) [ 4.894294][ T1] __ubsan_handle_out_of_bounds (lib/ubsan.c:232 (discriminator 1) lib/ubsan.c:429 (discriminator 1)) [ 4.894294][ T1] nfsd_support_version (fs/nfsd/nfssvc.c:136) [ 4.894294][ T1] nfsd_net_init (fs/nfsd/nfsctl.c:2252 (discriminator 2)) [ 4.894294][ T1] ops_init (net/core/net_namespace.c:139) [ 4.894294][ T1] register_pernet_operations (net/core/net_namespace.c:1252 net/core/net_namespace.c:1325) [ 4.894294][ T1] ? down_write (arch/x86/include/asm/preempt.h:79 (discriminator 10) kernel/locking/rwsem.c:1304 (discriminator 10) kernel/locking/rwsem.c:1315 (discriminator 10) kernel/locking/rwsem.c:1580 (discriminator 10)) [ 4.894294][ T1] register_pernet_subsys (net/core/net_namespace.c:1366) [ 4.894294][ T1] init_nfsd (fs/nfsd/nfsctl.c:2311) [ 4.894294][ T1] ? nfs4flexfilelayout_init (fs/nfsd/nfsctl.c:2295) [ 4.894294][ T1] do_one_initcall (init/main.c:1267) [ 4.894294][ T1] do_initcalls (init/main.c:1328 (discriminator 1) init/main.c:1345 (discriminator 1)) [ 4.894294][ T1] ? rest_init (init/main.c:1459) [ 4.894294][ T1] kernel_init_freeable (init/main.c:1582) [ 4.894294][ T1] kernel_init (init/main.c:1469) [ 4.894294][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 4.894294][ T1] ? rest_init (init/main.c:1459) [ 4.894294][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 4.894294][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:944) [ 4.924077][ T1] ---[ end trace ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240801/202408011636.9b233ef3-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki