Security Vulnerabilities - CVEs Published In May 2024
In the Linux kernel, the following vulnerability has been resolved:
btrfs: zoned: fix lock ordering in btrfs_zone_activate()
The btrfs CI reported a lockdep warning as follows by running generic
generic/129.
WARNING: possible circular locking dependency detected
6.7.0-rc5+ #1 Not tainted
------------------------------------------------------
kworker/u5:5/793427 is trying to acquire lock:
ffff88813256d028 (&cache->lock){+.+.}-{2:2}, at: btrfs_zone_finish_one_bg+0x5e/0x130
but task is already holding lock:
ffff88810a23a318 (&fs_info->zone_active_bgs_lock){+.+.}-{2:2}, at: btrfs_zone_finish_one_bg+0x34/0x130
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&fs_info->zone_active_bgs_lock){+.+.}-{2:2}:
...
-> #0 (&cache->lock){+.+.}-{2:2}:
...
This is because we take fs_info->zone_active_bgs_lock after a block_group's
lock in btrfs_zone_activate() while doing the opposite in other places.
Fix the issue by expanding the fs_info->zone_active_bgs_lock's critical
section and taking it before a block_group's lock.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-05-17
In the Linux kernel, the following vulnerability has been resolved:
crypto: s390/aes - Fix buffer overread in CTR mode
When processing the last block, the s390 ctr code will always read
a whole block, even if there isn't a whole block of data left. Fix
this by using the actual length left and copy it into a buffer first
for processing.
CVSS Score
7.8
EPSS Score
0.0
Published
2024-05-17
In the Linux kernel, the following vulnerability has been resolved:
drm/tegra: rgb: Fix missing clk_put() in the error handling paths of tegra_dc_rgb_probe()
If clk_get_sys(..., "pll_d2_out0") fails, the clk_get_sys() call must be
undone.
Add the missing clk_put and a new 'put_pll_d_out0' label in the error
handling path, and use it.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-05-17
In the Linux kernel, the following vulnerability has been resolved:
drm/vmwgfx: fix a memleak in vmw_gmrid_man_get_node
When ida_alloc_max fails, resources allocated before should be freed,
including *res allocated by kmalloc and ttm_resource_init.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-05-17
In the Linux kernel, the following vulnerability has been resolved:
ASoC: SOF: amd: Fix memory leak in amd_sof_acp_probe()
Driver uses kasprintf() to initialize fw_{code,data}_bin members of
struct acp_dev_data, but kfree() is never called to deallocate the
memory, which results in a memory leak.
Fix the issue by switching to devm_kasprintf(). Additionally, ensure the
allocation was successful by checking the pointer validity.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-05-17
In the Linux kernel, the following vulnerability has been resolved:
net: atlantic: eliminate double free in error handling logic
Driver has a logic leak in ring data allocation/free,
where aq_ring_free could be called multiple times on same ring,
if system is under stress and got memory allocation error.
Ring pointer was used as an indicator of failure, but this is
not correct since only ring data is allocated/deallocated.
Ring itself is an array member.
Changing ring allocation functions to return error code directly.
This simplifies error handling and eliminates aq_ring_free
on higher layer.
CVSS Score
7.8
EPSS Score
0.0
Published
2024-05-17
In the Linux kernel, the following vulnerability has been resolved:
debugfs: fix wait/cancellation handling during remove
Ben Greear further reports deadlocks during concurrent debugfs
remove while files are being accessed, even though the code in
question now uses debugfs cancellations. Turns out that despite
all the review on the locking, we missed completely that the
logic is wrong: if the refcount hits zero we can finish (and
need not wait for the completion), but if it doesn't we have
to trigger all the cancellations. As written, we can _never_
get into the loop triggering the cancellations. Fix this, and
explain it better while at it.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-05-17
In the Linux kernel, the following vulnerability has been resolved:
dm-raid: really frozen sync_thread during suspend
1) commit f52f5c71f3d4 ("md: fix stopping sync thread") remove
MD_RECOVERY_FROZEN from __md_stop_writes() and doesn't realize that
dm-raid relies on __md_stop_writes() to frozen sync_thread
indirectly. Fix this problem by adding MD_RECOVERY_FROZEN in
md_stop_writes(), and since stop_sync_thread() is only used for
dm-raid in this case, also move stop_sync_thread() to
md_stop_writes().
2) The flag MD_RECOVERY_FROZEN doesn't mean that sync thread is frozen,
it only prevent new sync_thread to start, and it can't stop the
running sync thread; In order to frozen sync_thread, after seting the
flag, stop_sync_thread() should be used.
3) The flag MD_RECOVERY_FROZEN doesn't mean that writes are stopped, use
it as condition for md_stop_writes() in raid_postsuspend() doesn't
look correct. Consider that reentrant stop_sync_thread() do nothing,
always call md_stop_writes() in raid_postsuspend().
4) raid_message can set/clear the flag MD_RECOVERY_FROZEN at anytime,
and if MD_RECOVERY_FROZEN is cleared while the array is suspended,
new sync_thread can start unexpected. Fix this by disallow
raid_message() to change sync_thread status during suspend.
Note that after commit f52f5c71f3d4 ("md: fix stopping sync thread"), the
test shell/lvconvert-raid-reshape.sh start to hang in stop_sync_thread(),
and with previous fixes, the test won't hang there anymore, however, the
test will still fail and complain that ext4 is corrupted. And with this
patch, the test won't hang due to stop_sync_thread() or fail due to ext4
is corrupted anymore. However, there is still a deadlock related to
dm-raid456 that will be fixed in following patches.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-05-17
A vulnerability was found in SourceCodester Online Birth Certificate Management System 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /admin. The manipulation leads to files or directories accessible. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-264742 is the identifier assigned to this vulnerability.
CVSS Score
5.3
EPSS Score
0.004
Published
2024-05-17
A vulnerability was found in SourceCodester Online Examination System 1.0. It has been rated as critical. This issue affects some unknown processing of the file registeracc.php. The manipulation of the argument email leads to sql injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-264743.
CVSS Score
7.3
EPSS Score
0.001
Published
2024-05-17