Media · CVSS 5.5EPSS 0,12%Sin corrección publicada
btrfs: don't BUG() on unexpected delayed ref type in run_one_delayed_ref()
In the Linux kernel, the following vulnerability has been resolved:
btrfs: don't BUG() on unexpected delayed ref type in run_one_delayed_ref()
There is no need to BUG(), we can just return an error and log an error
message.
Media · CVSS 5.5EPSS 0,12%Sin corrección publicada
drm/v3d: Set DMA segment size to avoid debug warnings
In the Linux kernel, the following vulnerability has been resolved:
drm/v3d: Set DMA segment size to avoid debug warnings
When using V3D rendering with CONFIG_DMA_API_DEBUG enabled, the
kernel occasionally reports a segment size mismatch. This is because
'max_seg_size' is not set. The kernel defaults to 64K. setting
'max_seg_size' to the maximum will prevent 'debug_dma_map_sg()'
from complaining about the over-mapping of the V3D segment length.
DMA-API: v3d 1002000000.v3d: mapping sg segment longer than device
claims to support [len=8290304] [max=65536]
WARNING: CPU: 0 PID: 493 at kernel/dma/debug.c:1179 debug_dma_map_sg+0x330/0x388
CPU:
btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure()
In the Linux kernel, the following vulnerability has been resolved:
btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure()
[BUG]
There is a bug report that when btrfs hits ENOSPC error in a critical
path, btrfs flips RO (this part is expected, although the ENOSPC bug
still needs to be addressed).
The problem is after the RO flip, if there is a read repair pending, we
can hit the ASSERT() inside btrfs_repair_io_failure() like the following:
BTRFS info (device vdc): relocating block group 30408704 flags metadata|raid1
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/
octeontx2-af: Workaround SQM/PSE stalls by disabling sticky
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: Workaround SQM/PSE stalls by disabling sticky
NIX SQ manager sticky mode is known to cause stalls when multiple SQs
share an SMQ and transmit concurrently. Additionally, PSE may deadlock
on transitions between sticky and non-sticky transmissions. There is
also a credit drop issue observed when certain condition clocks are
gated.
work around these hardware errata by:
- Disabling SQM sticky operation:
- Clear TM6 (bit 15)
- Clear TM11 (bit 14)
- Disabling sticky → non-sticky transition path that can deadlock PSE:
- Clear TM5 (bit 23)
- Preventing credit d
Media · CVSS 5.5EPSS 0,12%Sin corrección publicada
rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net()
In the Linux kernel, the following vulnerability has been resolved:
rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net()
When idtab allocation fails, net is not registered with rio_add_net() yet,
so kfree(net) is sufficient to release the memory. Set mport->net to NULL
to avoid dangling pointer.
Media · CVSS 5.5EPSS 0,13%Sin corrección publicada
ext4: move ext4_percpu_param_init() before ext4_mb_init()
In the Linux kernel, the following vulnerability has been resolved:
ext4: move ext4_percpu_param_init() before ext4_mb_init()
When running `kvm-xfstests -c ext4/1k -C 1 generic/383` with the
`DOUBLE_CHECK` macro defined, the following panic is triggered:
==================================================================
EXT4-fs error (device vdc): ext4_validate_block_bitmap:423:
comm mount: bg 0: bad block bitmap checksum
BUG: unable to handle page fault for address: ff110000fa2cc000
PGD 3e01067 P4D 3e02067 PUD 0
Oops: Oops: 0000 [#1] SMP NOPTI
CPU: 0 UID: 0 PID: 2386 Comm: mount Tainted: G W
Media · CVSS 5.5EPSS 0,12%Sin corrección publicada
drm: Account property blob allocations to memcg
In the Linux kernel, the following vulnerability has been resolved:
drm: Account property blob allocations to memcg
DRM_IOCTL_MODE_CREATEPROPBLOB allows userspace to allocate arbitrary-sized
property blobs backed by kernel memory.
Currently, the blob data allocation is not accounted to the allocating
process's memory cgroup, allowing unprivileged users to trigger unbounded
kernel memory consumption and potentially cause system-wide OOM.
Mark the property blob data allocation with GFP_KERNEL_ACCOUNT so that the memory
is properly charged to the caller's memcg. This ensures existing cgroup
memory limits apply and prevents uncontrolled kerne
Alta · CVSS 8.8EPSS 94,19%Código de explotación públicoSin corrección publicada
xfrm: esp: avoid in-place decrypt on shared skb frags
In the Linux kernel, the following vulnerability has been resolved:
xfrm: esp: avoid in-place decrypt on shared skb frags
MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP
marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter(),
so later paths that may modify packet data can first make a private
copy. The IPv4/IPv6 datagram append paths did not set this flag when
splicing pages into UDP skbs.
That leaves an ESP-in-UDP packet made from shared pipe pages looking
like an ordinary uncloned nonlinear skb. ESP input then takes the no-COW
fast path for uncloned skbs without a frag_list and decrypts in place
over da
In the Linux kernel, the following vulnerability has been resolved:
jfs: nlink overflow in jfs_rename
If nlink is maximal for a directory (-1) and inside that directory you
perform a rename for some child directory (not moving from the parent),
then the nlink of the first directory is first incremented and later
decremented. Normally this is fine, but when nlink = -1 this causes a
wrap around to 0, and then drop_nlink issues a warning.
After applying the patch syzbot no longer issues any warnings. I also
ran some basic fs tests to look for any regressions.
Media · CVSS 5.5EPSS 0,13%Sin corrección publicada
memory: mtk-smi: fix device leak on larb probe
In the Linux kernel, the following vulnerability has been resolved:
memory: mtk-smi: fix device leak on larb probe
Make sure to drop the reference taken when looking up the SMI device
during larb probe on late probe failure (e.g. probe deferral) and on
driver unbind.
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle
dma_free_coherent() in error path takes priv->rx_buf.alloc_len as
the dma handle. This would lead to improper unmapping of the buffer.
Change the dma handle to priv->rx_buf.alloc_phys.
mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()
In the Linux kernel, the following vulnerability has been resolved:
mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()
Although it is guided that `#mbox-cells` must be at least 1, there are
many instances of `#mbox-cells = <0>;` in the device tree. If that is
the case and the corresponding mailbox controller does not provide
`fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will
be used by default and out-of-bounds accesses could occur due to lack of
bounds check in that function.
ALSA: usb-audio: Add sanity check for OOB writes at silencing
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Add sanity check for OOB writes at silencing
At silencing the playback URB packets in the implicit fb mode before
the actual playback, we blindly assume that the received packets fit
with the buffer size. But when the setup in the capture stream
differs from the playback stream (e.g. due to the USB core limitation
of max packet size), such an inconsistency may lead to OOB writes to
the buffer, resulting in a crash.
For addressing it, add a sanity check of the transfer buffer size at
prepare_silent_urb(), and stop the data copy if the received data
overflo
Media · CVSS 5.5EPSS 0,11%Sin corrección publicada
APEI/GHES: ensure that won't go past CPER allocated record
In the Linux kernel, the following vulnerability has been resolved:
APEI/GHES: ensure that won't go past CPER allocated record
The logic at ghes_new() prevents allocating too large records, by
checking if they're bigger than GHES_ESTATUS_MAX_SIZE (currently, 64KB).
Yet, the allocation is done with the actual number of pages from the
CPER bios table location, which can be smaller.
Yet, a bad firmware could send data with a different size, which might
be bigger than the allocated memory, causing an OOPS:
Unable to handle kernel paging request at virtual address fff00000f9b40000
Mem abort info:
ESR = 0x0000000096000007
EC
Media · CVSS 4.7EPSS 0,09%Sin corrección publicada
scsi: ufs: core: Flush exception handling work when RPM level is zero
In the Linux kernel, the following vulnerability has been resolved:
scsi: ufs: core: Flush exception handling work when RPM level is zero
Ensure that the exception event handling work is explicitly flushed during
suspend when the runtime power management level is set to UFS_PM_LVL_0.
When the RPM level is zero, the device power mode and link state both
remain active. Previously, the UFS core driver bypassed flushing exception
event handling jobs in this configuration. This created a race condition
where the driver could attempt to access the host controller to handle an
exception after the system had already entered a deep power-down state
Media · CVSS 5.5EPSS 0,12%Sin corrección publicada
ceph: supply snapshot context in ceph_zero_partial_object()
In the Linux kernel, the following vulnerability has been resolved:
ceph: supply snapshot context in ceph_zero_partial_object()
The ceph_zero_partial_object function was missing proper snapshot
context for its OSD write operations, which could lead to data
inconsistencies in snapshots.
Reproducer:
../src/vstart.sh --new -x --localhost --bluestore
./bin/ceph auth caps client.fs_a mds 'allow rwps fsname=a' mon 'allow r fsname=a' osd 'allow rw tag cephfs data=a'
mount -t ceph [email protected]=/ /mnt/mycephfs/ -o conf=./ceph.conf
dd if=/dev/urandom of=/mnt/mycephfs/foo bs=64K count=1
mkdir /mnt/mycephfs/.snap/snap1
md5sum /mnt/mycephfs/.snap/snap1/foo
md-cluster: fix NULL pointer dereference in process_metadata_update
In the Linux kernel, the following vulnerability has been resolved:
md-cluster: fix NULL pointer dereference in process_metadata_update
The function process_metadata_update() blindly dereferences the 'thread'
pointer (acquired via rcu_dereference_protected) within the wait_event()
macro.
While the code comment states "daemon thread must exist", there is a valid
race condition window during the MD array startup sequence (md_run):
1. bitmap_load() is called, which invokes md_cluster_ops->join().
2. join() starts the "cluster_recv" thread (recv_daemon).
3. At this point, recv_daemon is active and processing messages.
4. However, mddev->threa
Media · CVSS 5.5EPSS 0,11%Sin corrección publicada
media: mtk-mdp: Fix a reference leak bug in mtk_mdp_remove()
In the Linux kernel, the following vulnerability has been resolved:
media: mtk-mdp: Fix a reference leak bug in mtk_mdp_remove()
In mtk_mdp_probe(), vpu_get_plat_device() increases the reference
count of the returned platform device. Add platform_device_put()
to prevent reference leak.
Media · CVSS 5.5EPSS 0,11%Sin corrección publicada
drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback
In the Linux kernel, the following vulnerability has been resolved:
drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback
After several commits, the slab memory increases. Some drm_crtc_commit
objects are not freed. The atomic_destroy_state callback only put the
framebuffer. Use the __drm_atomic_helper_plane_destroy_state() function
to put all the objects that are no longer needed.
It has been seen after hours of usage of a graphics application or using
kmemleak:
unreferenced object 0xc63a6580 (size 64):
comm "egt_basic", pid 171, jiffies 4294940784
hex dump (first 32 bytes):
40 50 34 c5 01 00 00 00 ff ff ff ff 8
Media · CVSS 5.5EPSS 0,12%Sin corrección publicada
hfsplus: pretend special inodes as regular files
In the Linux kernel, the following vulnerability has been resolved:
hfsplus: pretend special inodes as regular files
Since commit af153bb63a33 ("vfs: catch invalid modes in may_open()")
requires any inode be one of S_IFDIR/S_IFLNK/S_IFREG/S_IFCHR/S_IFBLK/
S_IFIFO/S_IFSOCK type, use S_IFREG for special inodes.