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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 01:33:23 -0700 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-09-04 12:58:04 +0200 |
| commit | 836b2fe544a5e9b5ce116622cb36fba33838c6fd (patch) | |
| tree | 95e38e4aaa0a6a78e373148b3d0af4aa2ab3d371 /fs/squashfs/decompressor.h | |
| download | linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.tar.gz linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.zip | |
selftests/bpf: Check that JMP32 pointer vs zero jumps are not predictedgrafted
Add jmp32_ptr_vs_zero_jne: the fall-through of the 32-bit compare, which
the verifier used to skip, contains an out of bounds map value access,
hence w/o the previous patch the program is accepted. See previous patch
for detailed description.
Reported-by: Nicholas Carlini <npc@anthropic.com>
Suggested-by: Nicholas Carlini <npc@anthropic.com>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'fs/squashfs/decompressor.h')
| -rw-r--r-- | fs/squashfs/decompressor.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/fs/squashfs/decompressor.h b/fs/squashfs/decompressor.h new file mode 100644 index 000000000..19ab60834 --- /dev/null +++ b/fs/squashfs/decompressor.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef DECOMPRESSOR_H +#define DECOMPRESSOR_H +/* + * Squashfs - a compressed read only filesystem for Linux + * + * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 + * Phillip Lougher <phillip@squashfs.org.uk> + * + * decompressor.h + */ + +#include <linux/bio.h> + +struct squashfs_decompressor { + void *(*init)(struct squashfs_sb_info *, void *); + void *(*comp_opts)(struct squashfs_sb_info *, void *, int); + void (*free)(void *); + int (*decompress)(struct squashfs_sb_info *, void *, + struct bio *, int, int, struct squashfs_page_actor *); + int id; + char *name; + int alloc_buffer; + int supported; +}; + +static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk, + void *buff, int length) +{ + return msblk->decompressor->comp_opts ? + msblk->decompressor->comp_opts(msblk, buff, length) : NULL; +} + +#ifdef CONFIG_SQUASHFS_XZ +extern const struct squashfs_decompressor squashfs_xz_comp_ops; +#endif + +#ifdef CONFIG_SQUASHFS_LZ4 +extern const struct squashfs_decompressor squashfs_lz4_comp_ops; +#endif + +#ifdef CONFIG_SQUASHFS_LZO +extern const struct squashfs_decompressor squashfs_lzo_comp_ops; +#endif + +#ifdef CONFIG_SQUASHFS_ZLIB +extern const struct squashfs_decompressor squashfs_zlib_comp_ops; +#endif + +#ifdef CONFIG_SQUASHFS_ZSTD +extern const struct squashfs_decompressor squashfs_zstd_comp_ops; +#endif + +#endif |