d80c69846d
This fixes the following when running xfstests generic/504: [ 134.394698] CIFS: Attempting to mount \\win16.vm.test\Share [ 134.420905] CIFS: VFS: generate_smb3signingkey: dumping generated AES session keys [ 134.420911] CIFS: VFS: Session Id 05 00 00 00 00 c4 00 00 [ 134.420914] CIFS: VFS: Cipher type 1 [ 134.420917] CIFS: VFS: Session Key ea 0b d9 22 2e af 01 69 30 1b 15 74 bf 87 41 11 [ 134.420920] CIFS: VFS: Signing Key 59 28 43 5c f0 b6 b1 6f f5 7b 65 f2 9f 9e 58 7d [ 134.420923] CIFS: VFS: ServerIn Key eb aa 58 c8 95 01 9a f7 91 98 e4 fa bc d8 74 f1 [ 134.420926] CIFS: VFS: ServerOut Key 08 5b 21 e5 2e 4e 86 f6 05 c2 58 e0 af 53 83 e7 [ 134.771946] ================================================================================ [ 134.771953] UBSAN: signed-integer-overflow in fs/cifs/file.c:1706:19 [ 134.771957] 9223372036854775807 + 1 cannot be represented in type 'long long int' [ 134.771960] CPU: 4 PID: 2773 Comm: flock Not tainted 5.11.22 #1 [ 134.771964] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 [ 134.771966] Call Trace: [ 134.771970] dump_stack+0x8d/0xb5 [ 134.771981] ubsan_epilogue+0x5/0x50 [ 134.771988] handle_overflow+0xa3/0xb0 [ 134.771997] ? lockdep_hardirqs_on_prepare+0xe8/0x1b0 [ 134.772006] cifs_setlk+0x63c/0x680 [cifs] [ 134.772085] ? _get_xid+0x5f/0xa0 [cifs] [ 134.772085] cifs_flock+0x131/0x400 [cifs] [ 134.772085] __x64_sys_flock+0xfc/0x120 [ 134.772085] do_syscall_64+0x33/0x40 [ 134.772085] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 134.772085] RIP: 0033:0x7fea4f83b3fb [ 134.772085] Code: ff 48 8b 15 8f 1a 0d 00 f7 d8 64 89 02 b8 ff ff ff ff eb da e8 16 0b 02 00 66 0f 1f 44 00 00 f3 0f 1e fa b8 49 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 5d 1a 0d 00 f7 d8 64 89 01 48 Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.