| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Access of uninitialized pointer, Uncontrolled Recursion vulnerability in Samsung Open Source rlottie allows Pointer Manipulation, Oversized Serialized Data Payloads.
This issue affects rlottie: before eae37633fda13ac05b25c6c95aacea4bc33c80a3. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/xe/pf: Fix sysfs initialization
In case of devm_add_action_or_reset() failure the provided cleanup
action will be run immediately on the not yet initialized kobject.
This may lead to errors like:
[ ] kobject: '(null)' (ff110001393608e0): is not initialized, yet kobject_put() is being called.
[ ] WARNING: lib/kobject.c:734 at kobject_put+0xd9/0x250, CPU#0: kworker/0:0/9
[ ] RIP: 0010:kobject_put+0xdf/0x250
[ ] Call Trace:
[ ] xe_sriov_pf_sysfs_init+0x21/0x100 [xe]
[ ] xe_sriov_pf_init_late+0x87/0x2b0 [xe]
[ ] xe_sriov_init_late+0x5f/0x2c0 [xe]
[ ] xe_device_probe+0x5f2/0xc20 [xe]
[ ] xe_pci_probe+0x396/0x610 [xe]
[ ] local_pci_probe+0x47/0xb0
[ ] refcount_t: underflow; use-after-free.
[ ] WARNING: lib/refcount.c:28 at refcount_warn_saturate+0x68/0xb0, CPU#0: kworker/0:0/9
[ ] RIP: 0010:refcount_warn_saturate+0x68/0xb0
[ ] Call Trace:
[ ] kobject_put+0x174/0x250
[ ] xe_sriov_pf_sysfs_init+0x21/0x100 [xe]
[ ] xe_sriov_pf_init_late+0x87/0x2b0 [xe]
[ ] xe_sriov_init_late+0x5f/0x2c0 [xe]
[ ] xe_device_probe+0x5f2/0xc20 [xe]
[ ] xe_pci_probe+0x396/0x610 [xe]
[ ] local_pci_probe+0x47/0xb0
Fix that by calling kobject_init() and kobject_add() separately
and register cleanup action after the kobject is initialized.
Also make this cleanup registration a part of the create helper to
fix another mistake, as in the loop we were wrongly passing parent
kobject while registering cleanup action, and this resulted in some
undetected leaks.
(cherry picked from commit 98b16727f07e26a5d4de84d88805ce7ffcfdd324) |
| In AzeoTech DAQFactory release 20.7 (Build 2555), an access of uninitialized pointer vulnerability can be exploited by an attacker which can lead to arbitrary code execution. |
| In the Linux kernel, the following vulnerability has been resolved:
pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree
When probing the k230 pinctrl driver, the kernel triggers a NULL pointer
dereference. The crash trace showed:
[ 0.732084] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068
[ 0.740737] ...
[ 0.776296] epc : k230_pinctrl_probe+0x1be/0x4fc
In k230_pinctrl_parse_functions(), we attempt to retrieve the device
pointer via info->pctl_dev->dev, but info->pctl_dev is only initialized
after k230_pinctrl_parse_dt() completes.
At the time of DT parsing, info->pctl_dev is still NULL, leading to
the invalid dereference of info->pctl_dev->dev.
Use the already available device pointer from platform_device
instead of accessing through uninitialized pctl_dev. |
| In the Linux kernel, the following vulnerability has been resolved:
clocksource/drivers/timer-sp804: Fix an Oops when read_current_timer is called on ARM32 platforms where the SP804 is not registered as the sched_clock.
On SP804, the delay timer shares the same clkevt instance with
sched_clock. On some platforms, when
sp804_clocksource_and_sched_clock_init is called with use_sched_clock
not set to 1, sched_clkevt is not properly initialized. However,
sp804_register_delay_timer is invoked unconditionally, and
read_current_timer() subsequently calls sp804_read on an uninitialized
sched_clkevt, leading to a kernel Oops when accessing
sched_clkevt->value.
Declare a dedicated clkevt instance exclusively for delay timer,
instead of sharing the same clkevt with sched_clock. This ensures
that read_current_timer continues to work correctly regardless of
whether SP804 is selected as the sched_clock. |
| Uninitialized Use in GPU in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High) |
| A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states. |
| Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration. |
| Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High) |
| Uninitialized Use in GPU in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High) |
| Uninitialized Use in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin information via a crafted HTML page. (Chromium security severity: High) |
| Uninitialized Use in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High) |
| Uninitialized Use in Gamepad in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High) |
| In the Linux kernel, the following vulnerability has been resolved:
usb: usblp: fix uninitialized heap leak via LPGETSTATUS ioctl
Just like in a previous problem in this driver, usblp_ctrl_msg() will
collapse the usb_control_msg() return value to 0/-errno, discarding the
actual number of bytes transferred.
Ideally that short command should be detected and error out, but many
printers are known to send "incorrect" responses back so we can't just
do that.
statusbuf is kmalloc(8) at probe time and never filled before the first
LPGETSTATUS ioctl.
usblp_read_status() requests 1 byte. If a malicious printer responds
with zero bytes, *statusbuf is one byte of stale kmalloc heap,
sign-extended into the local int status, which the LPGETSTATUS path then
copy_to_user()s directly to the ioctl caller.
Fix this all by just zapping out the memory buffer when allocated at
probe time. If a later call does a short read, the data will be
identical to what the device sent it the last time, so there is no
"leak" of information happening. |
| In the Linux kernel, the following vulnerability has been resolved:
usb: usblp: fix heap leak in IEEE 1284 device ID via short response
usblp_ctrl_msg() collapses the usb_control_msg() return value to
0/-errno, discarding the actual number of bytes transferred. A broken
printer can complete the GET_DEVICE_ID control transfer short and the
driver has no way to know.
usblp_cache_device_id_string() reads the 2-byte big-endian length prefix
from the response and trusts it (clamped only to the buffer bounds).
The buffer is kmalloc(1024) at probe time. A device that sends exactly
two bytes (e.g. 0x03 0xFF, claiming a 1023-byte ID) leaves
device_id_string[2..1022] holding stale kmalloc heap.
That stale data is then exposed:
- via the ieee1284_id sysfs attribute (sprintf("%s", buf+2), truncated
at the first NUL in the stale heap), and
- via the IOCNR_GET_DEVICE_ID ioctl, which copy_to_user()s the full
claimed length regardless of NULs, up to 1021 bytes of uninitialized
heap, with the leak size chosen by the device.
Fix this up by just zapping the buffer with zeros before each request
sent to the device. |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp()
Sashiko points out that pd->uctx isn't initialized until late in the
function so all these error flow references are NULL and will crash. Use
the uctx that isn't NULL. |
| In the Linux kernel, the following vulnerability has been resolved:
ixgbevf: add missing negotiate_features op to Hyper-V ops table
Commit a7075f501bd3 ("ixgbevf: fix mailbox API compatibility by
negotiating supported features") added the .negotiate_features callback
to ixgbe_mac_operations and populated it in ixgbevf_mac_ops, but forgot
to add it to ixgbevf_hv_mac_ops. This leaves the function pointer NULL
on Hyper-V VMs.
During probe, ixgbevf_negotiate_api() calls ixgbevf_set_features(),
which unconditionally dereferences hw->mac.ops.negotiate_features().
On Hyper-V this results in a NULL pointer dereference:
BUG: kernel NULL pointer dereference, address: 0000000000000000
[...]
Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine [...]
Workqueue: events work_for_cpu_fn
RIP: 0010:0x0
[...]
Call Trace:
ixgbevf_negotiate_api+0x66/0x160 [ixgbevf]
ixgbevf_sw_init+0xe4/0x1f0 [ixgbevf]
ixgbevf_probe+0x20f/0x4a0 [ixgbevf]
local_pci_probe+0x50/0xa0
work_for_cpu_fn+0x1a/0x30
[...]
Add ixgbevf_hv_negotiate_features_vf() that returns -EOPNOTSUPP and
wire it into ixgbevf_hv_mac_ops. The caller already handles -EOPNOTSUPP
gracefully. |
| In the Linux kernel, the following vulnerability has been resolved:
media: vidtv: fix pass-by-value structs causing MSAN warnings
vidtv_ts_null_write_into() and vidtv_ts_pcr_write_into() take their
argument structs by value, causing MSAN to report uninit-value warnings.
While only vidtv_ts_null_write_into() has triggered a report so far,
both functions share the same issue.
Fix by passing both structs by const pointer instead, avoiding the
stack copy of the struct along with its MSAN shadow and origin metadata.
The functions do not modify the structs, which is enforced by the const
qualifier. |
| In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix NULL i_assoc_inode dereference in nilfs_mdt_save_to_shadow_map
The DAT inode's btree node cache (i_assoc_inode) is initialized lazily
during btree operations. However, nilfs_mdt_save_to_shadow_map()
assumes i_assoc_inode is already initialized when copying dirty pages
to the shadow map during GC.
If NILFS_IOCTL_CLEAN_SEGMENTS is called immediately after mount before
any btree operation has occurred on the DAT inode, i_assoc_inode is
NULL leading to a general protection fault.
Fix this by calling nilfs_attach_btree_node_cache() on the DAT inode
in nilfs_dat_read() at mount time, ensuring i_assoc_inode is always
initialized before any GC operation can use it. |
| In the Linux kernel, the following vulnerability has been resolved:
clk: mediatek: Drop __initconst from gates
Since commit 8ceff24a754a ("clk: mediatek: clk-gate: Refactor
mtk_clk_register_gate to use mtk_gate struct") the mtk_gate structs
are no longer just used for initialization/registration, but also at
runtime. So drop __initconst annotations. |
