config EXT2_FS tristate "Second extended fs support" select FS_IOMAP if FS_DAX help Ext2 is a standard Linux file system for hard disks. To compile this file system support as a module, choose M here: the module will be called ext2. If unsure, say Y. config EXT2_FS_XATTR bool "Ext2 extended attributes" depends on EXT2_FS help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit for details). If unsure, say N. config EXT2_FS_POSIX_ACL bool "Ext2 POSIX Access Control Lists" depends on EXT2_FS_XATTR select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website . If you don't know what Access Control Lists are, say N config EXT2_FS_SECURITY bool "Ext2 Security Labels" depends on EXT2_FS_XATTR help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the ext2 filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. /td> net-next plumbingsTobias Klauser
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authorLaura Abbott <labbott@redhat.com>2016-12-21 12:32:54 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-12-27 17:32:11 +0800
commit02608e02fbec04fccf2eb0cc8d8082f65c0a4286 (patch)
tree37ff0410d130cfe77185f591b07cd6403f207f0c /include/uapi
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
crypto: testmgr - Use heap buffer for acomp test input
Christopher Covington reported a crash on aarch64 on recent Fedora kernels: kernel BUG at ./include/linux/scatterlist.h:140! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 752 Comm: cryptomgr_test Not tainted 4.9.0-11815-ge93b1cc #162 Hardware name: linux,dummy-virt (DT) task: ffff80007c650080 task.stack: ffff800008910000 PC is at sg_init_one+0xa0/0xb8 LR is at sg_init_one+0x24/0xb8 ... [<ffff000008398db8>] sg_init_one+0xa0/0xb8 [<ffff000008350a44>] test_acomp+0x10c/0x438 [<ffff000008350e20>] alg_test_comp+0xb0/0x118 [<ffff00000834f28c>] alg_test+0x17c/0x2f0 [<ffff00000834c6a4>] cryptomgr_test+0x44/0x50 [<ffff0000080dac70>] kthread+0xf8/0x128 [<ffff000008082ec0>] ret_from_fork+0x10/0x50 The test vectors used for input are part of the kernel image. These inputs are passed as a buffer to sg_init_one which eventually blows up with BUG_ON(!virt_addr_valid(buf)). On arm64, virt_addr_valid returns false for the kernel image since virt_to_page will not return the correct page. Fix this by copying the input vectors to heap buffer before setting up the scatterlist. Reported-by: Christopher Covington <cov@codeaurora.org> Fixes: d7db7a882deb ("crypto: acomp - update testmgr with support for acomp") Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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