| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()
When auxiliary_device_add() returns error and then calls
auxiliary_device_uninit(), callback function
gp_auxiliary_device_release() calls ida_free() and
kfree(aux_device_wrapper) to free memory. We should't
call them again in the error handling path.
Fix this by skipping the redundant cleanup functions. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Skip on writeback when it's not applicable
[WHY]
dynamic memory safety error detector (KASAN) catches and generates error
messages "BUG: KASAN: slab-out-of-bounds" as writeback connector does not
support certain features which are not initialized.
[HOW]
Skip them when connector type is DRM_MODE_CONNECTOR_WRITEBACK. |
| In the Linux kernel, the following vulnerability has been resolved:
null_blk: fix null-ptr-dereference while configuring 'power' and 'submit_queues'
Writing 'power' and 'submit_queues' concurrently will trigger kernel
panic:
Test script:
modprobe null_blk nr_devices=0
mkdir -p /sys/kernel/config/nullb/nullb0
while true; do echo 1 > submit_queues; echo 4 > submit_queues; done &
while true; do echo 1 > power; echo 0 > power; done
Test result:
BUG: kernel NULL pointer dereference, address: 0000000000000148
Oops: 0000 [#1] PREEMPT SMP
RIP: 0010:__lock_acquire+0x41d/0x28f0
Call Trace:
<TASK>
lock_acquire+0x121/0x450
down_write+0x5f/0x1d0
simple_recursive_removal+0x12f/0x5c0
blk_mq_debugfs_unregister_hctxs+0x7c/0x100
blk_mq_update_nr_hw_queues+0x4a3/0x720
nullb_update_nr_hw_queues+0x71/0xf0 [null_blk]
nullb_device_submit_queues_store+0x79/0xf0 [null_blk]
configfs_write_iter+0x119/0x1e0
vfs_write+0x326/0x730
ksys_write+0x74/0x150
This is because del_gendisk() can concurrent with
blk_mq_update_nr_hw_queues():
nullb_device_power_store nullb_apply_submit_queues
null_del_dev
del_gendisk
nullb_update_nr_hw_queues
if (!dev->nullb)
// still set while gendisk is deleted
return 0
blk_mq_update_nr_hw_queues
dev->nullb = NULL
Fix this problem by resuing the global mutex to protect
nullb_device_power_store() and nullb_update_nr_hw_queues() from configfs. |
| In the Linux kernel, the following vulnerability has been resolved:
net/sched: taprio: extend minimum interval restriction to entire cycle too
It is possible for syzbot to side-step the restriction imposed by the
blamed commit in the Fixes: tag, because the taprio UAPI permits a
cycle-time different from (and potentially shorter than) the sum of
entry intervals.
We need one more restriction, which is that the cycle time itself must
be larger than N * ETH_ZLEN bit times, where N is the number of schedule
entries. This restriction needs to apply regardless of whether the cycle
time came from the user or was the implicit, auto-calculated value, so
we move the existing "cycle == 0" check outside the "if "(!new->cycle_time)"
branch. This way covers both conditions and scenarios.
Add a selftest which illustrates the issue triggered by syzbot. |
| In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: ISO: Fix not validating setsockopt user input
Check user input length before copying data. |
| In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_sock: Fix not validating setsockopt user input
Check user input length before copying data. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: check A-MSDU format more carefully
If it looks like there's another subframe in the A-MSDU
but the header isn't fully there, we can end up reading
data out of bounds, only to discard later. Make this a
bit more careful and check if the subframe header can
even be present. |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()
If ->NameOffset of smb2_create_req is smaller than Buffer offset of
smb2_create_req, slab-out-of-bounds read can happen from smb2_open.
This patch set the minimum value of the name offset to the buffer offset
to validate name length of smb2_create_req(). |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix potencial out-of-bounds when buffer offset is invalid
I found potencial out-of-bounds when buffer offset fields of a few requests
is invalid. This patch set the minimum value of buffer offset field to
->Buffer offset to validate buffer length. |
| printer_write in drivers/usb/gadget/function/f_printer.c in the Linux kernel through 6.7.4 does not properly call usb_ep_queue, which might allow attackers to cause a denial of service or have unspecified other impact. |
| In the Linux kernel, the following vulnerability has been resolved:
apparmor: Fix null pointer deref when receiving skb during sock creation
The panic below is observed when receiving ICMP packets with secmark set
while an ICMP raw socket is being created. SK_CTX(sk)->label is updated
in apparmor_socket_post_create(), but the packet is delivered to the
socket before that, causing the null pointer dereference.
Drop the packet if label context is not set.
BUG: kernel NULL pointer dereference, address: 000000000000004c
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 407 Comm: a.out Not tainted 6.4.12-arch1-1 #1 3e6fa2753a2d75925c34ecb78e22e85a65d083df
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/28/2020
RIP: 0010:aa_label_next_confined+0xb/0x40
Code: 00 00 48 89 ef e8 d5 25 0c 00 e9 66 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 89 f0 <8b> 77 4c 39 c6 7e 1f 48 63 d0 48 8d 14 d7 eb 0b 83 c0 01 48 83 c2
RSP: 0018:ffffa92940003b08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000000e
RDX: ffffa92940003be8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8b57471e7800 R08: ffff8b574c642400 R09: 0000000000000002
R10: ffffffffbd820eeb R11: ffffffffbeb7ff00 R12: ffff8b574c642400
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
FS: 00007fb092ea7640(0000) GS:ffff8b577bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000004c CR3: 00000001020f2005 CR4: 00000000007706f0
PKRU: 55555554
Call Trace:
<IRQ>
? __die+0x23/0x70
? page_fault_oops+0x171/0x4e0
? exc_page_fault+0x7f/0x180
? asm_exc_page_fault+0x26/0x30
? aa_label_next_confined+0xb/0x40
apparmor_secmark_check+0xec/0x330
security_sock_rcv_skb+0x35/0x50
sk_filter_trim_cap+0x47/0x250
sock_queue_rcv_skb_reason+0x20/0x60
raw_rcv+0x13c/0x210
raw_local_deliver+0x1f3/0x250
ip_protocol_deliver_rcu+0x4f/0x2f0
ip_local_deliver_finish+0x76/0xa0
__netif_receive_skb_one_core+0x89/0xa0
netif_receive_skb+0x119/0x170
? __netdev_alloc_skb+0x3d/0x140
vmxnet3_rq_rx_complete+0xb23/0x1010 [vmxnet3 56a84f9c97178c57a43a24ec073b45a9d6f01f3a]
vmxnet3_poll_rx_only+0x36/0xb0 [vmxnet3 56a84f9c97178c57a43a24ec073b45a9d6f01f3a]
__napi_poll+0x28/0x1b0
net_rx_action+0x2a4/0x380
__do_softirq+0xd1/0x2c8
__irq_exit_rcu+0xbb/0xf0
common_interrupt+0x86/0xa0
</IRQ>
<TASK>
asm_common_interrupt+0x26/0x40
RIP: 0010:apparmor_socket_post_create+0xb/0x200
Code: 08 48 85 ff 75 a1 eb b1 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 54 <55> 48 89 fd 53 45 85 c0 0f 84 b2 00 00 00 48 8b 1d 80 56 3f 02 48
RSP: 0018:ffffa92940ce7e50 EFLAGS: 00000286
RAX: ffffffffbc756440 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000003 RSI: 0000000000000002 RDI: ffff8b574eaab740
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8b57444cec70 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000002 R14: ffff8b574eaab740 R15: ffffffffbd8e4748
? __pfx_apparmor_socket_post_create+0x10/0x10
security_socket_post_create+0x4b/0x80
__sock_create+0x176/0x1f0
__sys_socket+0x89/0x100
__x64_sys_socket+0x17/0x20
do_syscall_64+0x5d/0x90
? do_syscall_64+0x6c/0x90
? do_syscall_64+0x6c/0x90
? do_syscall_64+0x6c/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc |
| In the Linux kernel, the following vulnerability has been resolved:
gfs2: Fix slab-use-after-free in gfs2_qd_dealloc
In gfs2_put_super(), whether withdrawn or not, the quota should
be cleaned up by gfs2_quota_cleanup().
Otherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu
callback) has run for all gfs2_quota_data objects, resulting in
use-after-free.
Also, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called
by gfs2_make_fs_ro(), so in gfs2_put_super(), after calling
gfs2_make_fs_ro(), there is no need to call them again. |
| IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker could exploit this vulnerability to obtain sensitive information. |
| An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2. In hci_uart_tty_ioctl, there is a race condition between HCIUARTSETPROTO and HCIUARTGETPROTO. HCI_UART_PROTO_SET is set before hu->proto is set. A NULL pointer dereference may occur. |
| An issue was discovered in the Linux kernel through 6.0.9. drivers/char/xillybus/xillyusb.c has a race condition and use-after-free during physical removal of a USB device. |
| A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS. |
| In the Linux kernel, the following vulnerability has been resolved:
block: don't revert iter for -EIOCBQUEUED
blkdev_read_iter() has a few odd checks, like gating the position and
count adjustment on whether or not the result is bigger-than-or-equal to
zero (where bigger than makes more sense), and not checking the return
value of blkdev_direct_IO() before doing an iov_iter_revert(). The
latter can lead to attempting to revert with a negative value, which
when passed to iov_iter_revert() as an unsigned value will lead to
throwing a WARN_ON() because unroll is bigger than MAX_RW_COUNT.
Be sane and don't revert for -EIOCBQUEUED, like what is done in other
spots. |
| In the Linux kernel, the following vulnerability has been resolved:
landlock: Handle weird files
A corrupted filesystem (e.g. bcachefs) might return weird files.
Instead of throwing a warning and allowing access to such file, treat
them as regular files. |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"
The Call Trace is as below:
"
<TASK>
? show_regs.cold+0x1a/0x1f
? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
? __warn+0x84/0xd0
? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
? report_bug+0x105/0x180
? handle_bug+0x46/0x80
? exc_invalid_op+0x19/0x70
? asm_exc_invalid_op+0x1b/0x20
? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
? __rxe_cleanup+0x124/0x170 [rdma_rxe]
rxe_destroy_qp.cold+0x24/0x29 [rdma_rxe]
ib_destroy_qp_user+0x118/0x190 [ib_core]
rdma_destroy_qp.cold+0x43/0x5e [rdma_cm]
rtrs_cq_qp_destroy.cold+0x1d/0x2b [rtrs_core]
rtrs_srv_close_work.cold+0x1b/0x31 [rtrs_server]
process_one_work+0x21d/0x3f0
worker_thread+0x4a/0x3c0
? process_one_work+0x3f0/0x3f0
kthread+0xf0/0x120
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x22/0x30
</TASK>
"
When too many rdma resources are allocated, rxe needs more time to
handle these rdma resources. Sometimes with the current timeout, rxe
can not release the rdma resources correctly.
Compared with other rdma drivers, a bigger timeout is used. |
| In the Linux kernel, the following vulnerability has been resolved:
batman-adv: Drop unmanaged ELP metric worker
The ELP worker needs to calculate new metric values for all neighbors
"reachable" over an interface. Some of the used metric sources require
locks which might need to sleep. This sleep is incompatible with the RCU
list iterator used for the recorded neighbors. The initial approach to work
around of this problem was to queue another work item per neighbor and then
run this in a new context.
Even when this solved the RCU vs might_sleep() conflict, it has a major
problems: Nothing was stopping the work item in case it is not needed
anymore - for example because one of the related interfaces was removed or
the batman-adv module was unloaded - resulting in potential invalid memory
accesses.
Directly canceling the metric worker also has various problems:
* cancel_work_sync for a to-be-deactivated interface is called with
rtnl_lock held. But the code in the ELP metric worker also tries to use
rtnl_lock() - which will never return in this case. This also means that
cancel_work_sync would never return because it is waiting for the worker
to finish.
* iterating over the neighbor list for the to-be-deactivated interface is
currently done using the RCU specific methods. Which means that it is
possible to miss items when iterating over it without the associated
spinlock - a behaviour which is acceptable for a periodic metric check
but not for a cleanup routine (which must "stop" all still running
workers)
The better approch is to get rid of the per interface neighbor metric
worker and handle everything in the interface worker. The original problems
are solved by:
* creating a list of neighbors which require new metric information inside
the RCU protected context, gathering the metric according to the new list
outside the RCU protected context
* only use rcu_trylock inside metric gathering code to avoid a deadlock
when the cancel_delayed_work_sync is called in the interface removal code
(which is called with the rtnl_lock held) |
