Высокий · CVSS 8.8EPSS 0,47%Нет опубликованного исправления
xfs: delete attr leaf freemap entries when empty
In the Linux kernel, the following vulnerability has been resolved:
xfs: delete attr leaf freemap entries when empty
Back in commit 2a2b5932db6758 ("xfs: fix attr leaf header freemap.size
underflow"), Brian Foster observed that it's possible for a small
freemap at the end of the end of the xattr entries array to experience
a size underflow when subtracting the space consumed by an expansion of
the entries array. There are only three freemap entries, which means
that it is not a complete index of all free space in the leaf block.
This code can leave behind a zero-length freemap entry with a nonzero
base. Subsequent setxattr operations can
Высокий · CVSS 7.5EPSS 0,44%Нет опубликованного исправления
rnbd-srv: Zero the rsp buffer before using it
In the Linux kernel, the following vulnerability has been resolved:
rnbd-srv: Zero the rsp buffer before using it
Before using the data buffer to send back the response message, zero it
completely. This prevents any stray bytes to be picked up by the client
side when there the message is exchanged between different protocol
versions.
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
media: cx25821: Fix a resource leak in cx25821_dev_setup()
In the Linux kernel, the following vulnerability has been resolved:
media: cx25821: Fix a resource leak in cx25821_dev_setup()
Add release_mem_region() if ioremap() fails to release the memory
region obtained by cx25821_get_resources().
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
media: ccs: Avoid possible division by zero
In the Linux kernel, the following vulnerability has been resolved:
media: ccs: Avoid possible division by zero
Calculating maximum M for scaler configuration involves dividing by
MIN_X_OUTPUT_SIZE limit register's value. Albeit the value is presumably
non-zero, the driver was missing the check it in fact was. Fix this.
Высокий · CVSS 7.8EPSS 0,1%Нет опубликованного исправления
net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode
In the Linux kernel, the following vulnerability has been resolved:
net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode
kaweth_set_rx_mode(), the ndo_set_rx_mode callback, calls
netif_stop_queue() and netif_wake_queue(). These are TX queue flow
control functions unrelated to RX multicast configuration.
The premature netif_wake_queue() can re-enable TX while tx_urb is still
in-flight, leading to a double usb_submit_urb() on the same URB:
kaweth_start_xmit() {
netif_stop_queue();
usb_submit_urb(kaweth->tx_urb);
}
kaweth_set_rx_mode() {
netif_stop_queue();
netif_wake_queue(); // wakes TX queue be
Средний · CVSS 5.5EPSS 0,12%Нет опубликованного исправления
EFI/CPER: don't dump the entire memory region
In the Linux kernel, the following vulnerability has been resolved:
EFI/CPER: don't dump the entire memory region
The current logic at cper_print_fw_err() doesn't check if the
error record length is big enough to handle offset. On a bad firmware,
if the ofset is above the actual record, length -= offset will
underflow, making it dump the entire memory.
The end result can be:
- the logic taking a lot of time dumping large regions of memory;
- data disclosure due to the memory dumps;
- an OOPS, if it tries to dump an unmapped memory region.
Fix it by checking if the section length is too small before doing
a hex dump.
[ rjw: Subject tw
Средний · CVSS 5.5EPSS 0,12%Нет опубликованного исправления
ocfs2: fix reflink preserve cleanup issue
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix reflink preserve cleanup issue
commit c06c303832ec ("ocfs2: fix xattr array entry __counted_by error")
doesn't handle all cases and the cleanup job for preserved xattr entries
still has bug:
- the 'last' pointer should be shifted by one unit after cleanup
an array entry.
- current code logic doesn't cleanup the first entry when xh_count is 1.
Note, commit c06c303832ec is also a bug fix for 0fe9b66c65f3.
Средний · CVSS 6.7EPSS 0,12%Нет опубликованного исправления
xfrm: always flush state and policy upon NETDEV_UNREGISTER event
In the Linux kernel, the following vulnerability has been resolved:
xfrm: always flush state and policy upon NETDEV_UNREGISTER event
syzbot is reporting that "struct xfrm_state" refcount is leaking.
unregister_netdevice: waiting for netdevsim0 to become free. Usage count = 2
ref_tracker: netdev@ffff888052f24618 has 1/1 users at
__netdev_tracker_alloc include/linux/netdevice.h:4400 [inline]
netdev_tracker_alloc include/linux/netdevice.h:4412 [inline]
xfrm_dev_state_add+0x3a5/0x1080 net/xfrm/xfrm_device.c:316
xfrm_state_construct net/xfrm/xfrm_user.c:986 [inline]
xfrm_add_sa+0x34ff/0x5fa0 net/xfrm/xfrm_
Средний · CVSS 4.7EPSS 0,09%Нет опубликованного исправления
md/bitmap: fix GPF in write_page caused by resize race
In the Linux kernel, the following vulnerability has been resolved:
md/bitmap: fix GPF in write_page caused by resize race
A General Protection Fault occurs in write_page() during array resize:
RIP: 0010:write_page+0x22b/0x3c0 [md_mod]
This is a use-after-free race between bitmap_daemon_work() and
__bitmap_resize(). The daemon iterates over `bitmap->storage.filemap`
without locking, while the resize path frees that storage via
md_bitmap_file_unmap(). `quiesce()` does not stop the md thread,
allowing concurrent access to freed pages.
Fix by holding `mddev->bitmap_info.mutex` during the bitmap update.
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
staging: rtl8723bs: fix null dereference in find_network
In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix null dereference in find_network
The variable pwlan has the possibility of being NULL when passed into
rtw_free_network_nolock() which would later dereference the variable.
Высокий · CVSS 8.8EPSS 0,47%Нет опубликованного исправления
xfs: fix freemap adjustments when adding xattrs to leaf blocks
In the Linux kernel, the following vulnerability has been resolved:
xfs: fix freemap adjustments when adding xattrs to leaf blocks
xfs/592 and xfs/794 both trip this assertion in the leaf block freemap
adjustment code after ~20 minutes of running on my test VMs:
ASSERT(ichdr->firstused >= ichdr->count * sizeof(xfs_attr_leaf_entry_t)
+ xfs_attr3_leaf_hdr_size(leaf));
Upon enabling quite a lot more debugging code, I narrowed this down to
fsstress trying to set a local extended attribute with namelen=3 and
valuelen=71. This results in an entry size of 80 bytes.
At the start of xfs_attr3_leaf_add_work, the freemap looks like this:
i
Средний · CVSS 5.5EPSS 0,12%Нет опубликованного исправления
net: usb: pegasus: enable basic endpoint checking
In the Linux kernel, the following vulnerability has been resolved:
net: usb: pegasus: enable basic endpoint checking
pegasus_probe() fills URBs with hardcoded endpoint pipes without
verifying the endpoint descriptors:
- usb_rcvbulkpipe(dev, 1) for RX data
- usb_sndbulkpipe(dev, 2) for TX data
- usb_rcvintpipe(dev, 3) for status interrupts
A malformed USB device can present these endpoints with transfer types
that differ from what the driver assumes.
Add a pegasus_usb_ep enum for endpoint numbers, replacing magic
constants throughout. Add usb_check_bulk_endpoints() and
usb_check_int_endpoints() calls before any resource allocation
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
HID: hid-pl: handle probe errors
In the Linux kernel, the following vulnerability has been resolved:
HID: hid-pl: handle probe errors
Errors in init must be reported back or we'll
follow a NULL pointer the first time FF is used.
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()
In the Linux kernel, the following vulnerability has been resolved:
net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()
The priv->rx_buffer and priv->tx_buffer are alloc'd together as
contiguous buffers in uhdlc_init() but freed as two buffers in
uhdlc_memclean().
Change the cleanup to only call dma_free_coherent() once on the whole
buffer.
Высокий · CVSS 7.1EPSS 0,13%Нет опубликованного исправления
ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut
In the Linux kernel, the following vulnerability has been resolved:
ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut
Number of MW LUTs depends on NTB configuration and can be set to zero,
in such scenario rounddown_pow_of_two will cause undefined behaviour and
should not be performed.
This patch ensures that rounddown_pow_of_two is called on valid value.
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
HID: magicmouse: Do not crash on missing msc->input
In the Linux kernel, the following vulnerability has been resolved:
HID: magicmouse: Do not crash on missing msc->input
Fake USB devices can send their own report descriptors for which the
input_mapping() hook does not get called. In this case, msc->input stays NULL,
leading to a crash at a later time.
Detect this condition in the input_configured() hook and reject the device.
This is not supposed to happen with actual magic mouse devices, but can be
provoked by imposing as a magic mouse USB device.
Высокий · CVSS 8.6EPSS 0,38%Нет опубликованного исправления
xfrm6: fix uninitialized saddr in xfrm6_get_saddr()
In the Linux kernel, the following vulnerability has been resolved:
xfrm6: fix uninitialized saddr in xfrm6_get_saddr()
xfrm6_get_saddr() does not check the return value of
ipv6_dev_get_saddr(). When ipv6_dev_get_saddr() fails to find a suitable
source address (returns -EADDRNOTAVAIL), saddr->in6 is left
uninitialized, but xfrm6_get_saddr() still returns 0 (success).
This causes the caller xfrm_tmpl_resolve_one() to use the uninitialized
address in xfrm_state_find(), triggering KMSAN warning:
=====================================================
BUG: KMSAN: uninit-value in xfrm_state_find+0x2424/0xa940
xfrm_state_find+0x2424/0xa940
xfrm
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
HID: logitech-hidpp: Check maxfield in hidpp_get_report_length()
In the Linux kernel, the following vulnerability has been resolved:
HID: logitech-hidpp: Check maxfield in hidpp_get_report_length()
Do not crash when a report has no fields.
Fake USB gadgets can send their own HID report descriptors and can define report
structures without valid fields. This can be used to crash the kernel over USB.
Средний · CVSS 5.5EPSS 0,12%Нет опубликованного исправления
media: cx23885: Add missing unmap in snd_cx23885_hw_params()
In the Linux kernel, the following vulnerability has been resolved:
media: cx23885: Add missing unmap in snd_cx23885_hw_params()
In error path, add cx23885_alsa_dma_unmap() to release the
resource acquired by cx23885_alsa_dma_map().
Высокий · CVSS 8.1EPSS 0,12%Нет опубликованного исправления
Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ
This adds a check for encryption key size upon receiving
L2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which
expects L2CAP_CR_LE_BAD_KEY_SIZE.