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CVSS v3.1 |
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. |
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Fix variable not being completed when function returns
When cmd_alloc_index(), fails cmd_work_handler() needs
to complete ent->slotted before returning early.
Otherwise the task which issued the command may hang:
mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): failed to allocate command entry
INFO: task kworker/13:2:4055883 blocked for more than 120 seconds.
Not tainted 4.19.90-25.44.v2101.ky10.aarch64 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/13:2 D 0 4055883 2 0x00000228
Workqueue: events mlx5e_tx_dim_work [mlx5_core]
Call trace:
__switch_to+0xe8/0x150
__schedule+0x2a8/0x9b8
schedule+0x2c/0x88
schedule_timeout+0x204/0x478
wait_for_common+0x154/0x250
wait_for_completion+0x28/0x38
cmd_exec+0x7a0/0xa00 [mlx5_core]
mlx5_cmd_exec+0x54/0x80 [mlx5_core]
mlx5_core_modify_cq+0x6c/0x80 [mlx5_core]
mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core]
mlx5e_tx_dim_work+0x54/0x68 [mlx5_core]
process_one_work+0x1b0/0x448
worker_thread+0x54/0x468
kthread+0x134/0x138
ret_from_fork+0x10/0x18 |
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. |
In the Linux kernel, the following vulnerability has been resolved:
hid: cp2112: Fix duplicate workqueue initialization
Previously the cp2112 driver called INIT_DELAYED_WORK within
cp2112_gpio_irq_startup, resulting in duplicate initilizations of the
workqueue on subsequent IRQ startups following an initial request. This
resulted in a warning in set_work_data in workqueue.c, as well as a rare
NULL dereference within process_one_work in workqueue.c.
Initialize the workqueue within _probe instead. |
In the Linux kernel, the following vulnerability has been resolved:
dm thin: make get_first_thin use rcu-safe list first function
The documentation in rculist.h explains the absence of list_empty_rcu()
and cautions programmers against relying on a list_empty() ->
list_first() sequence in RCU safe code. This is because each of these
functions performs its own READ_ONCE() of the list head. This can lead
to a situation where the list_empty() sees a valid list entry, but the
subsequent list_first() sees a different view of list head state after a
modification.
In the case of dm-thin, this author had a production box crash from a GP
fault in the process_deferred_bios path. This function saw a valid list
head in get_first_thin() but when it subsequently dereferenced that and
turned it into a thin_c, it got the inside of the struct pool, since the
list was now empty and referring to itself. The kernel on which this
occurred printed both a warning about a refcount_t being saturated, and
a UBSAN error for an out-of-bounds cpuid access in the queued spinlock,
prior to the fault itself. When the resulting kdump was examined, it
was possible to see another thread patiently waiting in thin_dtr's
synchronize_rcu.
The thin_dtr call managed to pull the thin_c out of the active thins
list (and have it be the last entry in the active_thins list) at just
the wrong moment which lead to this crash.
Fortunately, the fix here is straight forward. Switch get_first_thin()
function to use list_first_or_null_rcu() which performs just a single
READ_ONCE() and returns NULL if the list is already empty.
This was run against the devicemapper test suite's thin-provisioning
suites for delete and suspend and no regressions were observed. |
In the Linux kernel, the following vulnerability has been resolved:
thermal: core: prevent potential string overflow
The dev->id value comes from ida_alloc() so it's a number between zero
and INT_MAX. If it's too high then these sprintf()s will overflow. |
Flag Forge is a Capture The Flag (CTF) platform. From versions 2.0.0 to before 2.3.1, the public endpoint /api/user/[username] returns user email addresses in its JSON response. The problem has been patched in FlagForge version 2.3.1. The fix removes email addresses from public API responses while keeping the endpoint publicly accessible. Users should upgrade to version 2.3.1 or later to eliminate exposure. There are no workarounds for this vulnerability. |
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to version 4.4.8, links generated with LaTeX typesetters in Markdown files and Markdown cells in JupyterLab and Jupyter Notebook did not include the noopener attribute. This is deemed to have no impact on the default installations. Theoretically users of third-party LaTeX-rendering extensions could find themselves vulnerable to reverse tabnabbing attacks if links generated by those extensions included target=_blank (no such extensions are known at time of writing) and they were to click on a link generated in LaTeX (typically visibly different from other links). This issue has been patched in version 4.4.8. |
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c. |
In DOXENSE WATCHDOC before 6.1.0.5094, private user puk codes can be disclosed for Active Directory registered users (there is hard-coded and predictable data). |
Todoist v8484 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload functionality. The application fails to properly validate the MIME type and sanitize image metadata. |
Mercusys MW305R 3.30 and below is has a Transport Layer Security (TLS) certificate private key disclosure. |
Multiple robotic products by Unitree sharing a common firmware, including the Go2, G1, H1, and B2 devices, contain a command injection vulnerability. By setting a malicious string when configuring the on-board WiFi via a BLE module of an affected robot, then triggering a restart of the WiFi service, an attacker can ultimately trigger commands to be run as root via the wpa_supplicant_restart.sh shell script. All Unitree models use firmware derived from the same codebase (MIT Cheetah), and the two major forks are the G1 (humanoid) and Go2 (quadruped) branches. |
A security flaw has been discovered in givanz Vvveb up to 1.0.7.2. This affects an unknown part of the component Image Handler. Performing manipulation results in information disclosure. Remote exploitation of the attack is possible. The exploit has been released to the public and may be exploited. Once again the project maintainer reacted very professional: "I accept the existence of these vulnerabilities. (...) I fixed the code to remove these vulnerabilities and will push the code to github and make a new release." |
A vulnerability was identified in givanz Vvveb up to 1.0.7.2. Affected by this issue is some unknown functionality of the component SVG File Handler. Such manipulation leads to cross site scripting. The attack may be launched remotely. The exploit is publicly available and might be used. Once again the project maintainer reacted very professional: "I accept the existence of these vulnerabilities. (...) I fixed the code to remove these vulnerabilities and will push the code to github and make a new release." |
A vulnerability was determined in givanz Vvveb up to 1.0.7.2. Affected by this vulnerability is an unknown functionality of the component Configuration File Handler. This manipulation causes information disclosure. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. Once again the project maintainer reacted very professional: "I accept the existence of these vulnerabilities. (...) I fixed the code to remove these vulnerabilities and will push the code to github and make a new release." |
A vulnerability was detected in OGRECave Ogre up to 14.4.1. The impacted element is the function Ogre::LogManager::stream of the file /ogre/OgreMain/src/OgreLogManager.cpp. Performing manipulation of the argument mDefaultLog results in null pointer dereference. The attack must be initiated from a local position. The exploit is now public and may be used. |
Missing Authorization vulnerability in HaruTheme Frames allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Frames: from n/a through 1.5.7. |
Deserialization of Untrusted Data vulnerability in Kiboko Labs Namaste! LMS allows Object Injection.This issue affects Namaste! LMS: from n/a through 2.6.3. |
In the Linux kernel, the following vulnerability has been resolved:
pmdomain: imx8mp-blk-ctrl: add missing loop break condition
Currently imx8mp_blk_ctrl_remove() will continue the for loop
until an out-of-bounds exception occurs.
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dev_pm_domain_detach+0x8/0x48
lr : imx8mp_blk_ctrl_shutdown+0x58/0x90
sp : ffffffc084f8bbf0
x29: ffffffc084f8bbf0 x28: ffffff80daf32ac0 x27: 0000000000000000
x26: ffffffc081658d78 x25: 0000000000000001 x24: ffffffc08201b028
x23: ffffff80d0db9490 x22: ffffffc082340a78 x21: 00000000000005b0
x20: ffffff80d19bc180 x19: 000000000000000a x18: ffffffffffffffff
x17: ffffffc080a39e08 x16: ffffffc080a39c98 x15: 4f435f464f006c72
x14: 0000000000000004 x13: ffffff80d0172110 x12: 0000000000000000
x11: ffffff80d0537740 x10: ffffff80d05376c0 x9 : ffffffc0808ed2d8
x8 : ffffffc084f8bab0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffffff80d19b9420 x4 : fffffffe03466e60 x3 : 0000000080800077
x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
dev_pm_domain_detach+0x8/0x48
platform_shutdown+0x2c/0x48
device_shutdown+0x158/0x268
kernel_restart_prepare+0x40/0x58
kernel_kexec+0x58/0xe8
__do_sys_reboot+0x198/0x258
__arm64_sys_reboot+0x2c/0x40
invoke_syscall+0x5c/0x138
el0_svc_common.constprop.0+0x48/0xf0
do_el0_svc+0x24/0x38
el0_svc+0x38/0xc8
el0t_64_sync_handler+0x120/0x130
el0t_64_sync+0x190/0x198
Code: 8128c2d0 ffffffc0 aa1e03e9 d503201f |