# git rev-parse -q --verify 4c80ba392bf603d468ea827d902f8e7b2505fbf4^{commit}
4c80ba392bf603d468ea827d902f8e7b2505fbf4
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4c80ba392bf603d468ea827d902f8e7b2505fbf4
# git clean -qxdf
# < git log -1
# commit 4c80ba392bf603d468ea827d902f8e7b2505fbf4
# Author: Eric Auger <eric.auger@redhat.com>
# Date:   Tue Nov 26 18:54:13 2019 +0100
# 
#     iommu: fix KASAN use-after-free in iommu_insert_resv_region
#     
#     In case the new region gets merged into another one, the nr list node is
#     freed.  Checking its type while completing the merge algorithm leads to
#     a use-after-free.  Use new->type instead.
#     
#     Fixes: 4dbd258ff63e ("iommu: Revisit iommu_insert_resv_region() implementation")
#     Signed-off-by: Eric Auger <eric.auger@redhat.com>
#     Reported-by: Qian Cai <cai@lca.pw>
#     Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
#     Cc: Stable <stable@vger.kernel.org> #v5.3+
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-ld --version
# < git log --format=%s --max-count=1 4c80ba392bf603d468ea827d902f8e7b2505fbf4
# < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  defconfig
# make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  
/kisskb/src/arch/s390/kernel/unwind_bc.c: In function '__unwind_start':
/kisskb/src/arch/s390/kernel/unwind_bc.c:157:5: warning: 'ip' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info.isra.31':
/kisskb/src/net/bridge/br_netlink.c:587:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec':
/kisskb/src/fs/ext4/extents.c:5054:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1377:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/devlink.c: In function 'devlink_fmsg_prepare_skb':
/kisskb/src/net/core/devlink.c:4613:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/sched/core.c: In function 'try_to_wake_up':
/kisskb/src/kernel/sched/core.c:2649:12: warning: 'cpu' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/fs/proc/inode.c:374:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c:2081:42: warning: 'end' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/ocfs2/alloc.c: In function 'ocfs2_trim_mainbm':
/kisskb/src/fs/ocfs2/alloc.c:7608:17: warning: 'first_bit' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1749:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_s390-defconfig_s390x
# Build took: 0:04:50.696673