8 Commits

Author SHA1 Message Date
Lidong Chen
84bc0a9a68 fs: Prevent overflows when allocating memory for arrays
Use grub_calloc() when allocating memory for arrays to ensure proper
overflow checks are in place.

The HFS+ and squash4 security vulnerabilities were reported by
Jonathan Bar Or <jonathanbaror@gmail.com>.

Fixes: CVE-2025-0678
Fixes: CVE-2025-1125

Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2025-02-13 15:45:57 +01:00
Glenn Washburn
f5a92e6040 disk: Allow read hook callback to take read buffer to potentially modify it
It will be desirable in the future to allow having the read hook modify the
data passed back from a read function call on a disk or file. This adds that
infrastructure and has no impact on code flow for existing uses of the read
hook. Also changed is that now when the read hook callback is called it can
also indicate what error code should be sent back to the read caller.

Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Patrick Steinhardt <ps@pks.im>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2022-07-04 14:43:25 +02:00
Elyes Haouas
5b077d05b3 fs: Remove trailing whitespaces
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2022-03-14 15:45:30 +01:00
Vladimir Serbinenko
2e238b3708 Make grub_zlib_decompress handle incomplete chunks.
Fixes squash4.
2013-12-18 23:39:49 +01:00
Vladimir Serbinenko
7e47e27bd8 Add gcc_struct to all packed structures when compiling with mingw.
Just "packed" doesn't always pack the way we expect.
2013-12-15 14:14:30 +01:00
Vladimir Serbinenko
f169f65e75 * grub-core/fs/hfspluscomp.c (hfsplus_read_compressed_real): Call
file_progress_read_hook.
	* grub-core/fs/ntfscomp.c (hfsplus_read_compressed_real): Likewise.
2013-11-02 16:30:53 +01:00
Vladimir 'phcoder' Serbinenko
d128901ace * grub-core/fs/hfspluscomp.c (grub_hfsplus_compress_attr): Add packed
attribute since structure is not necessarily aligned.
2013-05-11 09:59:59 +02:00
Vladimir 'phcoder' Serbinenko
8098f65556 Compressed HFS+ support. 2013-05-07 15:46:17 +02:00