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Message-ID: <202306100124.8IFscRUR-lkp@intel.com>
Date: Sat, 10 Jun 2023 01:53:13 +0800
From: kernel test robot <lkp@...el.com>
To: Jisheng Zhang <jszhang@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Palmer Dabbelt <palmerdabbelt@...gle.com>
Subject: lib/xz/xz_dec_stream.c:549:20: warning: stack frame size (2976)
exceeds limit (2048) in 'dec_main'
Hi Jisheng,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0f506c7f7d3d8d68a1a020c3d914390b3ffc30d0
commit: 8341dcfbd8dda98a3b2836a421016f7d88e35b1c riscv: Enable Undefined Behavior Sanitizer UBSAN
date: 1 year, 10 months ago
config: riscv-randconfig-r001-20230609 (https://download.01.org/0day-ci/archive/20230610/202306100124.8IFscRUR-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8341dcfbd8dda98a3b2836a421016f7d88e35b1c
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 8341dcfbd8dda98a3b2836a421016f7d88e35b1c
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=riscv olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/bus/mhi/ drivers/char/ipmi/ drivers/mmc/host/ lib/xz/ lib/zlib_deflate/ lib/zlib_inflate/ lib/zstd/
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306100124.8IFscRUR-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> lib/xz/xz_dec_stream.c:549:20: warning: stack frame size (2976) exceeds limit (2048) in 'dec_main' [-Wframe-larger-than]
static enum xz_ret dec_main(struct xz_dec *s, struct xz_buf *b)
^
1 warning generated.
--
>> lib/xz/xz_dec_lzma2.c:931:23: warning: stack frame size (4704) exceeds limit (2048) in 'xz_dec_lzma2_run' [-Wframe-larger-than]
XZ_EXTERN enum xz_ret xz_dec_lzma2_run(struct xz_dec_lzma2 *s,
^
>> lib/xz/xz_dec_lzma2.c:722:13: warning: stack frame size (2400) exceeds limit (2048) in 'lzma_main' [-Wframe-larger-than]
static bool lzma_main(struct xz_dec_lzma2 *s)
^
2 warnings generated.
--
>> lib/zlib_inflate/inflate.c:331:5: warning: stack frame size (3984) exceeds limit (2048) in 'zlib_inflate' [-Wframe-larger-than]
int zlib_inflate(z_streamp strm, int flush)
^
1 warning generated.
--
>> lib/zlib_deflate/deftree.c:618:13: warning: stack frame size (2864) exceeds limit (2048) in 'send_tree' [-Wframe-larger-than]
static void send_tree(
^
1 warning generated.
--
lib/zstd/compress.c:434:8: warning: no previous prototype for function 'ZSTD_noCompressBlock' [-Wmissing-prototypes]
size_t ZSTD_noCompressBlock(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
^
lib/zstd/compress.c:434:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
size_t ZSTD_noCompressBlock(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
^
static
lib/zstd/compress.c:2252:6: warning: no previous prototype for function 'ZSTD_compressBlock_greedy_extDict' [-Wmissing-prototypes]
void ZSTD_compressBlock_greedy_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_extDict_generic(ctx, src, srcSize, 0, 0); }
^
lib/zstd/compress.c:2252:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void ZSTD_compressBlock_greedy_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_extDict_generic(ctx, src, srcSize, 0, 0); }
^
static
lib/zstd/compress.c:2982:15: warning: no previous prototype for function 'ZSTD_createCStream_advanced' [-Wmissing-prototypes]
ZSTD_CStream *ZSTD_createCStream_advanced(ZSTD_customMem customMem)
^
lib/zstd/compress.c:2982:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
ZSTD_CStream *ZSTD_createCStream_advanced(ZSTD_customMem customMem)
^
static
>> lib/zstd/compress.c:2272:13: warning: stack frame size (2912) exceeds limit (2048) in 'ZSTD_compressBlock_btopt' [-Wframe-larger-than]
static void ZSTD_compressBlock_btopt(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
^
>> lib/zstd/compress.c:2284:13: warning: stack frame size (2896) exceeds limit (2048) in 'ZSTD_compressBlock_btopt2' [-Wframe-larger-than]
static void ZSTD_compressBlock_btopt2(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
^
>> lib/zstd/compress.c:2296:13: warning: stack frame size (2976) exceeds limit (2048) in 'ZSTD_compressBlock_btopt_extDict' [-Wframe-larger-than]
static void ZSTD_compressBlock_btopt_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
^
>> lib/zstd/compress.c:2308:13: warning: stack frame size (2992) exceeds limit (2048) in 'ZSTD_compressBlock_btopt2_extDict' [-Wframe-larger-than]
static void ZSTD_compressBlock_btopt2_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
^
7 warnings generated.
--
>> drivers/char/ipmi/ipmi_si_intf.c:748:26: warning: stack frame size (2240) exceeds limit (2048) in 'smi_event_handler' [-Wframe-larger-than]
static enum si_sm_result smi_event_handler(struct smi_info *smi_info,
^
1 warning generated.
--
>> drivers/mmc/host/sdhci.c:3411:20: warning: stack frame size (2992) exceeds limit (2048) in 'sdhci_irq' [-Wframe-larger-than]
static irqreturn_t sdhci_irq(int irq, void *dev_id)
^
1 warning generated.
vim +/dec_main +549 lib/xz/xz_dec_stream.c
24fa0402a9b6a5 Lasse Collin 2011-01-12 548
24fa0402a9b6a5 Lasse Collin 2011-01-12 @549 static enum xz_ret dec_main(struct xz_dec *s, struct xz_buf *b)
24fa0402a9b6a5 Lasse Collin 2011-01-12 550 {
24fa0402a9b6a5 Lasse Collin 2011-01-12 551 enum xz_ret ret;
24fa0402a9b6a5 Lasse Collin 2011-01-12 552
24fa0402a9b6a5 Lasse Collin 2011-01-12 553 /*
24fa0402a9b6a5 Lasse Collin 2011-01-12 554 * Store the start position for the case when we are in the middle
24fa0402a9b6a5 Lasse Collin 2011-01-12 555 * of the Index field.
24fa0402a9b6a5 Lasse Collin 2011-01-12 556 */
24fa0402a9b6a5 Lasse Collin 2011-01-12 557 s->in_start = b->in_pos;
24fa0402a9b6a5 Lasse Collin 2011-01-12 558
24fa0402a9b6a5 Lasse Collin 2011-01-12 559 while (true) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 560 switch (s->sequence) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 561 case SEQ_STREAM_HEADER:
24fa0402a9b6a5 Lasse Collin 2011-01-12 562 /*
24fa0402a9b6a5 Lasse Collin 2011-01-12 563 * Stream Header is copied to s->temp, and then
24fa0402a9b6a5 Lasse Collin 2011-01-12 564 * decoded from there. This way if the caller
24fa0402a9b6a5 Lasse Collin 2011-01-12 565 * gives us only little input at a time, we can
24fa0402a9b6a5 Lasse Collin 2011-01-12 566 * still keep the Stream Header decoding code
24fa0402a9b6a5 Lasse Collin 2011-01-12 567 * simple. Similar approach is used in many places
24fa0402a9b6a5 Lasse Collin 2011-01-12 568 * in this file.
24fa0402a9b6a5 Lasse Collin 2011-01-12 569 */
24fa0402a9b6a5 Lasse Collin 2011-01-12 570 if (!fill_temp(s, b))
24fa0402a9b6a5 Lasse Collin 2011-01-12 571 return XZ_OK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 572
24fa0402a9b6a5 Lasse Collin 2011-01-12 573 /*
24fa0402a9b6a5 Lasse Collin 2011-01-12 574 * If dec_stream_header() returns
24fa0402a9b6a5 Lasse Collin 2011-01-12 575 * XZ_UNSUPPORTED_CHECK, it is still possible
24fa0402a9b6a5 Lasse Collin 2011-01-12 576 * to continue decoding if working in multi-call
24fa0402a9b6a5 Lasse Collin 2011-01-12 577 * mode. Thus, update s->sequence before calling
24fa0402a9b6a5 Lasse Collin 2011-01-12 578 * dec_stream_header().
24fa0402a9b6a5 Lasse Collin 2011-01-12 579 */
24fa0402a9b6a5 Lasse Collin 2011-01-12 580 s->sequence = SEQ_BLOCK_START;
24fa0402a9b6a5 Lasse Collin 2011-01-12 581
24fa0402a9b6a5 Lasse Collin 2011-01-12 582 ret = dec_stream_header(s);
24fa0402a9b6a5 Lasse Collin 2011-01-12 583 if (ret != XZ_OK)
24fa0402a9b6a5 Lasse Collin 2011-01-12 584 return ret;
24fa0402a9b6a5 Lasse Collin 2011-01-12 585
4c1ca831adb101 Nick Desaulniers 2020-11-15 586 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 587
24fa0402a9b6a5 Lasse Collin 2011-01-12 588 case SEQ_BLOCK_START:
24fa0402a9b6a5 Lasse Collin 2011-01-12 589 /* We need one byte of input to continue. */
24fa0402a9b6a5 Lasse Collin 2011-01-12 590 if (b->in_pos == b->in_size)
24fa0402a9b6a5 Lasse Collin 2011-01-12 591 return XZ_OK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 592
24fa0402a9b6a5 Lasse Collin 2011-01-12 593 /* See if this is the beginning of the Index field. */
24fa0402a9b6a5 Lasse Collin 2011-01-12 594 if (b->in[b->in_pos] == 0) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 595 s->in_start = b->in_pos++;
24fa0402a9b6a5 Lasse Collin 2011-01-12 596 s->sequence = SEQ_INDEX;
24fa0402a9b6a5 Lasse Collin 2011-01-12 597 break;
24fa0402a9b6a5 Lasse Collin 2011-01-12 598 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 599
24fa0402a9b6a5 Lasse Collin 2011-01-12 600 /*
24fa0402a9b6a5 Lasse Collin 2011-01-12 601 * Calculate the size of the Block Header and
24fa0402a9b6a5 Lasse Collin 2011-01-12 602 * prepare to decode it.
24fa0402a9b6a5 Lasse Collin 2011-01-12 603 */
24fa0402a9b6a5 Lasse Collin 2011-01-12 604 s->block_header.size
24fa0402a9b6a5 Lasse Collin 2011-01-12 605 = ((uint32_t)b->in[b->in_pos] + 1) * 4;
24fa0402a9b6a5 Lasse Collin 2011-01-12 606
24fa0402a9b6a5 Lasse Collin 2011-01-12 607 s->temp.size = s->block_header.size;
24fa0402a9b6a5 Lasse Collin 2011-01-12 608 s->temp.pos = 0;
24fa0402a9b6a5 Lasse Collin 2011-01-12 609 s->sequence = SEQ_BLOCK_HEADER;
24fa0402a9b6a5 Lasse Collin 2011-01-12 610
4c1ca831adb101 Nick Desaulniers 2020-11-15 611 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 612
24fa0402a9b6a5 Lasse Collin 2011-01-12 613 case SEQ_BLOCK_HEADER:
24fa0402a9b6a5 Lasse Collin 2011-01-12 614 if (!fill_temp(s, b))
24fa0402a9b6a5 Lasse Collin 2011-01-12 615 return XZ_OK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 616
24fa0402a9b6a5 Lasse Collin 2011-01-12 617 ret = dec_block_header(s);
24fa0402a9b6a5 Lasse Collin 2011-01-12 618 if (ret != XZ_OK)
24fa0402a9b6a5 Lasse Collin 2011-01-12 619 return ret;
24fa0402a9b6a5 Lasse Collin 2011-01-12 620
24fa0402a9b6a5 Lasse Collin 2011-01-12 621 s->sequence = SEQ_BLOCK_UNCOMPRESS;
24fa0402a9b6a5 Lasse Collin 2011-01-12 622
4c1ca831adb101 Nick Desaulniers 2020-11-15 623 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 624
24fa0402a9b6a5 Lasse Collin 2011-01-12 625 case SEQ_BLOCK_UNCOMPRESS:
24fa0402a9b6a5 Lasse Collin 2011-01-12 626 ret = dec_block(s, b);
24fa0402a9b6a5 Lasse Collin 2011-01-12 627 if (ret != XZ_STREAM_END)
24fa0402a9b6a5 Lasse Collin 2011-01-12 628 return ret;
24fa0402a9b6a5 Lasse Collin 2011-01-12 629
24fa0402a9b6a5 Lasse Collin 2011-01-12 630 s->sequence = SEQ_BLOCK_PADDING;
24fa0402a9b6a5 Lasse Collin 2011-01-12 631
4c1ca831adb101 Nick Desaulniers 2020-11-15 632 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 633
24fa0402a9b6a5 Lasse Collin 2011-01-12 634 case SEQ_BLOCK_PADDING:
24fa0402a9b6a5 Lasse Collin 2011-01-12 635 /*
24fa0402a9b6a5 Lasse Collin 2011-01-12 636 * Size of Compressed Data + Block Padding
24fa0402a9b6a5 Lasse Collin 2011-01-12 637 * must be a multiple of four. We don't need
24fa0402a9b6a5 Lasse Collin 2011-01-12 638 * s->block.compressed for anything else
24fa0402a9b6a5 Lasse Collin 2011-01-12 639 * anymore, so we use it here to test the size
24fa0402a9b6a5 Lasse Collin 2011-01-12 640 * of the Block Padding field.
24fa0402a9b6a5 Lasse Collin 2011-01-12 641 */
24fa0402a9b6a5 Lasse Collin 2011-01-12 642 while (s->block.compressed & 3) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 643 if (b->in_pos == b->in_size)
24fa0402a9b6a5 Lasse Collin 2011-01-12 644 return XZ_OK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 645
24fa0402a9b6a5 Lasse Collin 2011-01-12 646 if (b->in[b->in_pos++] != 0)
24fa0402a9b6a5 Lasse Collin 2011-01-12 647 return XZ_DATA_ERROR;
24fa0402a9b6a5 Lasse Collin 2011-01-12 648
24fa0402a9b6a5 Lasse Collin 2011-01-12 649 ++s->block.compressed;
24fa0402a9b6a5 Lasse Collin 2011-01-12 650 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 651
24fa0402a9b6a5 Lasse Collin 2011-01-12 652 s->sequence = SEQ_BLOCK_CHECK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 653
4c1ca831adb101 Nick Desaulniers 2020-11-15 654 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 655
24fa0402a9b6a5 Lasse Collin 2011-01-12 656 case SEQ_BLOCK_CHECK:
24fa0402a9b6a5 Lasse Collin 2011-01-12 657 if (s->check_type == XZ_CHECK_CRC32) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 658 ret = crc32_validate(s, b);
24fa0402a9b6a5 Lasse Collin 2011-01-12 659 if (ret != XZ_STREAM_END)
24fa0402a9b6a5 Lasse Collin 2011-01-12 660 return ret;
24fa0402a9b6a5 Lasse Collin 2011-01-12 661 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 662 #ifdef XZ_DEC_ANY_CHECK
24fa0402a9b6a5 Lasse Collin 2011-01-12 663 else if (!check_skip(s, b)) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 664 return XZ_OK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 665 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 666 #endif
24fa0402a9b6a5 Lasse Collin 2011-01-12 667
24fa0402a9b6a5 Lasse Collin 2011-01-12 668 s->sequence = SEQ_BLOCK_START;
24fa0402a9b6a5 Lasse Collin 2011-01-12 669 break;
24fa0402a9b6a5 Lasse Collin 2011-01-12 670
24fa0402a9b6a5 Lasse Collin 2011-01-12 671 case SEQ_INDEX:
24fa0402a9b6a5 Lasse Collin 2011-01-12 672 ret = dec_index(s, b);
24fa0402a9b6a5 Lasse Collin 2011-01-12 673 if (ret != XZ_STREAM_END)
24fa0402a9b6a5 Lasse Collin 2011-01-12 674 return ret;
24fa0402a9b6a5 Lasse Collin 2011-01-12 675
24fa0402a9b6a5 Lasse Collin 2011-01-12 676 s->sequence = SEQ_INDEX_PADDING;
24fa0402a9b6a5 Lasse Collin 2011-01-12 677
4c1ca831adb101 Nick Desaulniers 2020-11-15 678 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 679
24fa0402a9b6a5 Lasse Collin 2011-01-12 680 case SEQ_INDEX_PADDING:
24fa0402a9b6a5 Lasse Collin 2011-01-12 681 while ((s->index.size + (b->in_pos - s->in_start))
24fa0402a9b6a5 Lasse Collin 2011-01-12 682 & 3) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 683 if (b->in_pos == b->in_size) {
24fa0402a9b6a5 Lasse Collin 2011-01-12 684 index_update(s, b);
24fa0402a9b6a5 Lasse Collin 2011-01-12 685 return XZ_OK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 686 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 687
24fa0402a9b6a5 Lasse Collin 2011-01-12 688 if (b->in[b->in_pos++] != 0)
24fa0402a9b6a5 Lasse Collin 2011-01-12 689 return XZ_DATA_ERROR;
24fa0402a9b6a5 Lasse Collin 2011-01-12 690 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 691
24fa0402a9b6a5 Lasse Collin 2011-01-12 692 /* Finish the CRC32 value and Index size. */
24fa0402a9b6a5 Lasse Collin 2011-01-12 693 index_update(s, b);
24fa0402a9b6a5 Lasse Collin 2011-01-12 694
24fa0402a9b6a5 Lasse Collin 2011-01-12 695 /* Compare the hashes to validate the Index field. */
24fa0402a9b6a5 Lasse Collin 2011-01-12 696 if (!memeq(&s->block.hash, &s->index.hash,
24fa0402a9b6a5 Lasse Collin 2011-01-12 697 sizeof(s->block.hash)))
24fa0402a9b6a5 Lasse Collin 2011-01-12 698 return XZ_DATA_ERROR;
24fa0402a9b6a5 Lasse Collin 2011-01-12 699
24fa0402a9b6a5 Lasse Collin 2011-01-12 700 s->sequence = SEQ_INDEX_CRC32;
24fa0402a9b6a5 Lasse Collin 2011-01-12 701
4c1ca831adb101 Nick Desaulniers 2020-11-15 702 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 703
24fa0402a9b6a5 Lasse Collin 2011-01-12 704 case SEQ_INDEX_CRC32:
24fa0402a9b6a5 Lasse Collin 2011-01-12 705 ret = crc32_validate(s, b);
24fa0402a9b6a5 Lasse Collin 2011-01-12 706 if (ret != XZ_STREAM_END)
24fa0402a9b6a5 Lasse Collin 2011-01-12 707 return ret;
24fa0402a9b6a5 Lasse Collin 2011-01-12 708
24fa0402a9b6a5 Lasse Collin 2011-01-12 709 s->temp.size = STREAM_HEADER_SIZE;
24fa0402a9b6a5 Lasse Collin 2011-01-12 710 s->sequence = SEQ_STREAM_FOOTER;
24fa0402a9b6a5 Lasse Collin 2011-01-12 711
4c1ca831adb101 Nick Desaulniers 2020-11-15 712 fallthrough;
5a244f48ecbbd0 Lasse Collin 2017-05-03 713
24fa0402a9b6a5 Lasse Collin 2011-01-12 714 case SEQ_STREAM_FOOTER:
24fa0402a9b6a5 Lasse Collin 2011-01-12 715 if (!fill_temp(s, b))
24fa0402a9b6a5 Lasse Collin 2011-01-12 716 return XZ_OK;
24fa0402a9b6a5 Lasse Collin 2011-01-12 717
24fa0402a9b6a5 Lasse Collin 2011-01-12 718 return dec_stream_footer(s);
24fa0402a9b6a5 Lasse Collin 2011-01-12 719 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 720 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 721
24fa0402a9b6a5 Lasse Collin 2011-01-12 722 /* Never reached */
24fa0402a9b6a5 Lasse Collin 2011-01-12 723 }
24fa0402a9b6a5 Lasse Collin 2011-01-12 724
:::::: The code at line 549 was first introduced by commit
:::::: 24fa0402a9b6a537e87e38341e78b7da86486846 decompressors: add XZ decompressor module
:::::: TO: Lasse Collin <lasse.collin@...aani.org>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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