# git rev-parse -q --verify baf76f0c58aec435a3a864075b8f6d8ee5d1f17e^{commit}
baf76f0c58aec435a3a864075b8f6d8ee5d1f17e
already have revision, skipping fetch
# git checkout -q -f -B kisskb baf76f0c58aec435a3a864075b8f6d8ee5d1f17e
# git clean -qxdf
# < git log -1
# commit baf76f0c58aec435a3a864075b8f6d8ee5d1f17e
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Apr 25 16:13:58 2019 -0700
# 
#     slip: make slhc_free() silently accept an error pointer
#     
#     This way, slhc_free() accepts what slhc_init() returns, whether that is
#     an error or not.
#     
#     In particular, the pattern in sl_alloc_bufs() is
#     
#             slcomp = slhc_init(16, 16);
#             ...
#             slhc_free(slcomp);
#     
#     for the error handling path, and rather than complicate that code, just
#     make it ok to always free what was returned by the init function.
#     
#     That's what the code used to do before commit 4ab42d78e37a ("ppp, slip:
#     Validate VJ compression slot parameters completely") when slhc_init()
#     just returned NULL for the error case, with no actual indication of the
#     details of the error.
#     
#     Reported-by: syzbot+45474c076a4927533d2e@syzkaller.appspotmail.com
#     Fixes: 4ab42d78e37a ("ppp, slip: Validate VJ compression slot parameters completely")
#     Acked-by: Ben Hutchings <ben@decadent.org.uk>
#     Cc: David Miller <davem@davemloft.net>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 baf76f0c58aec435a3a864075b8f6d8ee5d1f17e
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/linus_pasemi_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  pasemi_defconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/linus_pasemi_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<Ud140>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<Ud140>]' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:187:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2594:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:337:21: note: 'pdeo' was declared here
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1435:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here
/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/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_pasemi_defconfig_powerpc-gcc4.6
# Build took: 0:01:11.492239