Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Peilin Ye f51ec3fd71 Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts ... commit 6735b4632def0640dbdf4eb9f99816aca18c4f16 upstream. syzbot has reported an issue in the framebuffer layer, where a malicious user may overflow our built-in font data buffers. In order to perform a reliable range check, subsystems need to know `FONTDATAMAX` for each built-in font. Unfortunately, our font descriptor, `struct console_font` does not contain `FONTDATAMAX`, and is part of the UAPI, making it infeasible to modify it. For user-provided fonts, the framebuffer layer resolves this issue by reserving four extra words at the beginning of data buffers. Later, whenever a function needs to access them, it simply uses the following macros: Recently we have gathered all the above macros to <linux/font.h>. Let us do the same thing for built-in fonts, prepend four extra words (including `FONTDATAMAX`) to their data buffers, so that subsystems can use these macros for all fonts, no matter built-in or user-provided. This patch depends on patch "fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h". Cc: stable@vger.kernel.org Link: https://syzkaller.appspot.com/bug?id=08b8be45afea11888776f897895aef9ad1c3ecfd Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/ef18af00c35fb3cc826048a5f70924ed6ddce95b.1600953813.git.yepeilin.cs@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-10-14 10:32:56 +02:00
..
842
crypto
dim
fonts	Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts	2020-10-14 10:32:56 +02:00
livepatch
lz4
lzo	lib/lzo: fix ambiguous encoding bug in lzo-rle	2020-06-17 16:40:28 +02:00
math
mpi	lib/mpi: Fix 64-bit MIPS build with Clang	2020-06-22 09:31:00 +02:00
raid6	lib/raid6/test: fix build on distros whose /bin/sh is not bash	2020-04-29 16:33:00 +02:00
reed_solomon
vdso
xz
zlib_deflate
zlib_inflate	lib/zlib: remove outdated and incorrect pre-increment optimization	2020-06-24 17:50:39 +02:00
zstd
.gitignore
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
assoc_array.c
atomic64.c
atomic64_test.c
audit.c
bcd.c
bch.c
bitmap.c
bitrev.c
bsearch.c
btree.c
bucket_locks.c
bug.c
build_OID_registry
bust_spinlocks.c
chacha.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
cmpdi2.c
compat_audit.c
cpu_rmap.c
cpumask.c
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c	crc-t10dif: Fix potential crypto notify dead-lock	2020-08-19 08:15:54 +02:00
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c	debugobjects: Fix various data races	2020-02-24 08:36:52 +01:00
dec_and_lock.c
decompress.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
devres.c	devres: keep both device name and resource name in pretty name	2020-08-21 13:05:32 +02:00
digsig.c
dump_stack.c
dynamic_debug.c	dyndbg: fix a BUG_ON in ddebug_describe_flags	2020-08-19 08:16:04 +02:00
dynamic_queue_limits.c
earlycpio.c
error-inject.c
errseq.c
extable.c
fault-inject.c
fdt.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c	uapi: rename ext2_swab() to swab() and share globally in swab.h	2020-04-13 10:48:07 +02:00
find_bit_benchmark.c
flex_proportions.c
gen_crc32table.c
gen_crc64table.c
genalloc.c
generic-radix-tree.c
glob.c
globtest.c
hexdump.c
hweight.c
idr.c
inflate.c
interval_tree.c
interval_tree_test.c
iomap.c
iomap_copy.c
iommu-helper.c
ioremap.c
iov_iter.c
irq_poll.c
irq_regs.c
is_single_threaded.c
kasprintf.c
Kconfig
Kconfig.debug	kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()	2020-10-01 13:17:10 +02:00
Kconfig.kasan
Kconfig.kgdb
Kconfig.ubsan
kfifo.c
klist.c
kobject.c	kobject: Restore old behaviour of kobject_del(NULL)	2020-09-17 13:47:52 +02:00
kobject_uevent.c
kstrtox.c
kstrtox.h
libcrc32c.c
list_debug.c
list_sort.c
llist.c
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lockref.c
logic_pio.c
lru_cache.c
lshrdi3.c
Makefile
memcat_p.c
memory-notifier-error-inject.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c
nmi_backtrace.c
nodemask.c
notifier-error-inject.c
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c
packing.c
parman.c
parser.c
pci_iomap.c
percpu-refcount.c
percpu_counter.c
percpu_test.c
plist.c
pm-notifier-error-inject.c
radix-tree.c
random32.c	random32: Restore __latent_entropy attribute on net_rand_state	2020-10-07 08:01:29 +02:00
ratelimit.c
rbtree.c
rbtree_test.c
refcount.c
rhashtable.c
sbitmap.c	sbitmap: only queue kyber's wait callback if not already active	2020-01-12 12:21:44 +01:00
scatterlist.c	lib/scatterlist.c: adjust indentation in __sg_alloc_table	2020-02-24 08:37:00 +01:00
seq_buf.c
sg_pool.c
sg_split.c
sha1.c
show_mem.c
siphash.c
smp_processor_id.c
sort.c
stackdepot.c	lib/stackdepot.c: fix global out-of-bounds in stack_slabs	2020-02-28 17:22:20 +01:00
stmp_device.c
string.c	lib/string.c: implement stpcpy	2020-10-01 13:18:23 +02:00
string_helpers.c
strncpy_from_user.c	lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user()	2020-01-29 16:45:29 +01:00
strnlen_user.c	lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user()	2020-01-29 16:45:29 +01:00
syscall.c
test-kstrtox.c
test-string_helpers.c
test_bitfield.c
test_bitmap.c
test_blackhole_dev.c
test_bpf.c
test_debug_virtual.c
test_firmware.c
test_hash.c
test_hexdump.c
test_ida.c
test_kasan.c	kasan: stop tests being eliminated as dead code with FORTIFY_SOURCE	2020-06-22 09:31:12 +02:00
test_kmod.c	test_kmod: avoid potential double free in trigger_config_run_type()	2020-08-21 13:05:37 +02:00
test_list_sort.c
test_memcat_p.c
test_meminit.c
test_module.c
test_objagg.c	test_objagg: Fix potential memory leak in error handling	2020-06-30 15:37:04 -04:00
test_overflow.c
test_parman.c
test_printf.c	vsprintf: don't obfuscate NULL and error pointers	2020-05-27 17:46:43 +02:00
test_rhashtable.c
test_siphash.c
test_sort.c
test_stackinit.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_strscpy.c
test_sysctl.c
test_ubsan.c
test_user_copy.c
test_uuid.c
test_vmalloc.c
test_xarray.c	XArray: Fix xas_pause for large multi-index entries	2020-04-17 10:50:18 +02:00
textsearch.c
timerqueue.c
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c	vsprintf: don't obfuscate NULL and error pointers	2020-05-27 17:46:43 +02:00
win_minmax.c
xarray.c	xarray: Fix early termination of xas_for_each_marked	2020-04-17 10:50:18 +02:00
xxhash.c