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Filename Latest commit message Latest commit date
Liequan Che 4379c58284 bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again
commit b2e382ae12a63560fca35050498e19e760adf8c0 upstream.

Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in
node allocations") leads a NULL pointer deference in cache_set_flush().

1721         if (!IS_ERR_OR_NULL(c->root))
1722                 list_add(&c->root->list, &c->btree_cache);

>From the above code in cache_set_flush(), if previous registration code
fails before allocating c->root, it is possible c->root is NULL as what
it is initialized. __bch_btree_node_alloc() never returns NULL but
c->root is possible to be NULL at above line 1721.

This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.

Fixes: 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations")
Signed-off-by: Liequan Che <cheliequan@inspur.com>
Cc: stable@vger.kernel.org
Cc: Zheng Wang <zyytlz.wz@163.com>
Reviewed-by: Mingzhe Zou <mingzhe.zou@easystack.cn>
Signed-off-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20241202115638.28957-1-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-14 19:44:49 +01:00
arch crypto: x86/aegis128 - access 32-bit arguments as 32-bit 2024-12-14 19:44:47 +01:00
block block: fix ordering between checking BLK_MQ_S_STOPPED request adding 2024-12-14 19:44:38 +01:00
certs
crypto crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY 2024-12-14 19:44:23 +01:00
Documentation dt-bindings: clock: axi-clkgen: include AXI clk 2024-12-14 19:44:30 +01:00
drivers bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again 2024-12-14 19:44:49 +01:00
fs nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() 2024-12-14 19:44:49 +01:00
include xen/xenbus: fix locking 2024-12-14 19:44:47 +01:00
init
ipc
kernel tracing: Fix cmp_entries_dup() to respect sort() comparison rules 2024-12-14 19:44:48 +01:00
lib lib: string_helpers: silence snprintf() output truncation warning 2024-12-14 19:44:39 +01:00
LICENSES
mm
net tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg 2024-12-14 19:44:47 +01:00
samples bpf: Fix the xdp_adjust_tail sample prog issue 2024-12-14 19:44:26 +01:00
scripts modpost: remove incorrect code in do_eisa_entry() 2024-12-14 19:44:41 +01:00
security apparmor: fix 'Do simple duplicate message elimination' 2024-12-14 19:44:34 +01:00
sound ASoC: fsl_micfil: fix the naming style for mask definition 2024-12-14 19:44:42 +01:00
tools perf trace: Avoid garbage when not printing a syscall's arguments 2024-12-14 19:44:32 +01:00
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README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.