| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Linux kernel 2.2.19 enables CAP_SYS_RESOURCE for setuid processes, which allows local users to exceed disk quota restrictions during execution of setuid programs. |
| Unknown vulnerabilities in the UDP port allocation for Linux kernel before 2.2.19 could allow local users to cause a denial of service (deadlock). |
| Certain operations in Linux kernel before 2.2.19 on the x86 architecture copy the wrong number of bytes, which might allow attackers to modify memory, aka "User access asm bug on x86." |
| Masquerading code for Linux kernel before 2.2.19 does not fully check packet lengths in certain cases, which may lead to a vulnerability. |
| Unknown vulnerability in Linux kernel 2.x may allow local users to modify the group ID of files, such as NFS exported files in kernel 2.4. |
| The suid_dumpable support in Linux kernel 2.6.13 up to versions before 2.6.17.4, and 2.6.16 before 2.6.16.24, allows a local user to cause a denial of service (disk consumption) and possibly gain privileges via the PR_SET_DUMPABLE argument of the prctl function and a program that causes a core dump file to be created in a directory for which the user does not have permissions. |
| Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie. |
| Multiple ethernet Network Interface Card (NIC) device drivers do not pad frames with null bytes, which allows remote attackers to obtain information from previous packets or kernel memory by using malformed packets, as demonstrated by Etherleak. |
| The kernel module loader in Linux kernel 2.2.x before 2.2.25, and 2.4.x before 2.4.21, allows local users to gain root privileges by using ptrace to attach to a child process that is spawned by the kernel. |
| ptrace in Linux 2.2.x through 2.2.19, and 2.4.x through 2.4.9, allows local users to gain root privileges by running ptrace on a setuid or setgid program that itself calls an unprivileged program, such as newgrp. |
| The selinux_ptrace logic in hooks.c in SELinux for Linux 2.6.6 allows local users with ptrace permissions to change the tracer SID to an SID of another process. |
| In the Linux kernel, the following vulnerability has been resolved:
idpf: detach and close netdevs while handling a reset
Protect the reset path from callbacks by setting the netdevs to detached
state and close any netdevs in UP state until the reset handling has
completed. During a reset, the driver will de-allocate resources for the
vport, and there is no guarantee that those will recover, which is why the
existing vport_ctrl_lock does not provide sufficient protection.
idpf_detach_and_close() is called right before reset handling. If the
reset handling succeeds, the netdevs state is recovered via call to
idpf_attach_and_open(). If the reset handling fails the netdevs remain
down. The detach/down calls are protected with RTNL lock to avoid racing
with callbacks. On the recovery side the attach can be done without
holding the RTNL lock as there are no callbacks expected at that point,
due to detach/close always being done first in that flow.
The previous logic restoring the netdevs state based on the
IDPF_VPORT_UP_REQUESTED flag in the init task is not needed anymore, hence
the removal of idpf_set_vport_state(). The IDPF_VPORT_UP_REQUESTED is
still being used to restore the state of the netdevs following the reset,
but has no use outside of the reset handling flow.
idpf_init_hard_reset() is converted to void, since it was used as such and
there is no error handling being done based on its return value.
Before this change, invoking hard and soft resets simultaneously will
cause the driver to lose the vport state:
ip -br a
<inf> UP
echo 1 > /sys/class/net/ens801f0/device/reset& \
ethtool -L ens801f0 combined 8
ip -br a
<inf> DOWN
ip link set <inf> up
ip -br a
<inf> DOWN
Also in case of a failure in the reset path, the netdev is left
exposed to external callbacks, while vport resources are not
initialized, leading to a crash on subsequent ifup/down:
[408471.398966] idpf 0000:83:00.0: HW reset detected
[408471.411744] idpf 0000:83:00.0: Device HW Reset initiated
[408472.277901] idpf 0000:83:00.0: The driver was unable to contact the device's firmware. Check that the FW is running. Driver state= 0x2
[408508.125551] BUG: kernel NULL pointer dereference, address: 0000000000000078
[408508.126112] #PF: supervisor read access in kernel mode
[408508.126687] #PF: error_code(0x0000) - not-present page
[408508.127256] PGD 2aae2f067 P4D 0
[408508.127824] Oops: Oops: 0000 [#1] SMP NOPTI
...
[408508.130871] RIP: 0010:idpf_stop+0x39/0x70 [idpf]
...
[408508.139193] Call Trace:
[408508.139637] <TASK>
[408508.140077] __dev_close_many+0xbb/0x260
[408508.140533] __dev_change_flags+0x1cf/0x280
[408508.140987] netif_change_flags+0x26/0x70
[408508.141434] dev_change_flags+0x3d/0xb0
[408508.141878] devinet_ioctl+0x460/0x890
[408508.142321] inet_ioctl+0x18e/0x1d0
[408508.142762] ? _copy_to_user+0x22/0x70
[408508.143207] sock_do_ioctl+0x3d/0xe0
[408508.143652] sock_ioctl+0x10e/0x330
[408508.144091] ? find_held_lock+0x2b/0x80
[408508.144537] __x64_sys_ioctl+0x96/0xe0
[408508.144979] do_syscall_64+0x79/0x3d0
[408508.145415] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[408508.145860] RIP: 0033:0x7f3e0bb4caff |
| In the Linux kernel, the following vulnerability has been resolved:
idpf: Fix RSS LUT NULL ptr issue after soft reset
During soft reset, the RSS LUT is freed and not restored unless the
interface is up. If an ethtool command that accesses the rss lut is
attempted immediately after reset, it will result in NULL ptr
dereference. Also, there is no need to reset the rss lut if the soft reset
does not involve queue count change.
After soft reset, set the RSS LUT to default values based on the updated
queue count only if the reset was a result of a queue count change and
the LUT was not configured by the user. In all other cases, don't touch
the LUT.
Steps to reproduce:
** Bring the interface down (if up)
ifconfig eth1 down
** update the queue count (eg., 27->20)
ethtool -L eth1 combined 20
** display the RSS LUT
ethtool -x eth1
[82375.558338] BUG: kernel NULL pointer dereference, address: 0000000000000000
[82375.558373] #PF: supervisor read access in kernel mode
[82375.558391] #PF: error_code(0x0000) - not-present page
[82375.558408] PGD 0 P4D 0
[82375.558421] Oops: Oops: 0000 [#1] SMP NOPTI
<snip>
[82375.558516] RIP: 0010:idpf_get_rxfh+0x108/0x150 [idpf]
[82375.558786] Call Trace:
[82375.558793] <TASK>
[82375.558804] rss_prepare.isra.0+0x187/0x2a0
[82375.558827] rss_prepare_data+0x3a/0x50
[82375.558845] ethnl_default_doit+0x13d/0x3e0
[82375.558863] genl_family_rcv_msg_doit+0x11f/0x180
[82375.558886] genl_rcv_msg+0x1ad/0x2b0
[82375.558902] ? __pfx_ethnl_default_doit+0x10/0x10
[82375.558920] ? __pfx_genl_rcv_msg+0x10/0x10
[82375.558937] netlink_rcv_skb+0x58/0x100
[82375.558957] genl_rcv+0x2c/0x50
[82375.558971] netlink_unicast+0x289/0x3e0
[82375.558988] netlink_sendmsg+0x215/0x440
[82375.559005] __sys_sendto+0x234/0x240
[82375.559555] __x64_sys_sendto+0x28/0x30
[82375.560068] x64_sys_call+0x1909/0x1da0
[82375.560576] do_syscall_64+0x7a/0xfa0
[82375.561076] ? clear_bhb_loop+0x60/0xb0
[82375.561567] entry_SYSCALL_64_after_hwframe+0x76/0x7e
<snip> |
| A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. There isn't any check on whether there is enough space in the destination buffer. The function simply appends all data passed to it. The values of all attributes that are requested are appended to the output buffer. There are no size checks whatsoever, resulting in a simple heap overflow if one can craft a request where the response is large enough to overflow the preallocated buffer. This issue exists in service_attr_req gets called by process_request (in sdpd-request.c), which also allocates the response buffer. |
| An issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation. By crafting a malicious CSTATE, it is possible to trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. The root cause can be found in the function service_attr_req of sdpd-request.c. The server does not check whether the CSTATE data is the same in consecutive requests, and instead simply trusts that it is the same. |
| In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conncount: update last_gc only when GC has been performed
Currently last_gc is being updated everytime a new connection is
tracked, that means that it is updated even if a GC wasn't performed.
With a sufficiently high packet rate, it is possible to always bypass
the GC, causing the list to grow infinitely.
Update the last_gc value only when a GC has been actually performed. |
| In the Linux kernel, the following vulnerability has been resolved:
net: cpsw: Execute ndo_set_rx_mode callback in a work queue
Commit 1767bb2d47b7 ("ipv6: mcast: Don't hold RTNL for
IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP.") removed the RTNL lock for
IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP operations. However, this
change triggered the following call trace on my BeagleBone Black board:
WARNING: net/8021q/vlan_core.c:236 at vlan_for_each+0x120/0x124, CPU#0: rpcbind/481
RTNL: assertion failed at net/8021q/vlan_core.c (236)
Modules linked in:
CPU: 0 UID: 997 PID: 481 Comm: rpcbind Not tainted 6.19.0-rc7-next-20260130-yocto-standard+ #35 PREEMPT
Hardware name: Generic AM33XX (Flattened Device Tree)
Call trace:
unwind_backtrace from show_stack+0x28/0x2c
show_stack from dump_stack_lvl+0x30/0x38
dump_stack_lvl from __warn+0xb8/0x11c
__warn from warn_slowpath_fmt+0x130/0x194
warn_slowpath_fmt from vlan_for_each+0x120/0x124
vlan_for_each from cpsw_add_mc_addr+0x54/0x98
cpsw_add_mc_addr from __hw_addr_ref_sync_dev+0xc4/0xec
__hw_addr_ref_sync_dev from __dev_mc_add+0x78/0x88
__dev_mc_add from igmp6_group_added+0x84/0xec
igmp6_group_added from __ipv6_dev_mc_inc+0x1fc/0x2f0
__ipv6_dev_mc_inc from __ipv6_sock_mc_join+0x124/0x1b4
__ipv6_sock_mc_join from do_ipv6_setsockopt+0x84c/0x1168
do_ipv6_setsockopt from ipv6_setsockopt+0x88/0xc8
ipv6_setsockopt from do_sock_setsockopt+0xe8/0x19c
do_sock_setsockopt from __sys_setsockopt+0x84/0xac
__sys_setsockopt from ret_fast_syscall+0x0/0x54
This trace occurs because vlan_for_each() is called within
cpsw_ndo_set_rx_mode(), which expects the RTNL lock to be held.
Since modifying vlan_for_each() to operate without the RTNL lock is not
straightforward, and because ndo_set_rx_mode() is invoked both with and
without the RTNL lock across different code paths, simply adding
rtnl_lock() in cpsw_ndo_set_rx_mode() is not a viable solution.
To resolve this issue, we opt to execute the actual processing within
a work queue, following the approach used by the icssg-prueth driver.
Please note: To reproduce this issue, I manually reverted the changes to
am335x-bone-common.dtsi from commit c477358e66a3 ("ARM: dts: am335x-bone:
switch to new cpsw switch drv") in order to revert to the legacy cpsw
driver. |
| In the Linux kernel, the following vulnerability has been resolved:
Revert "f2fs: block cache/dio write during f2fs_enable_checkpoint()"
This reverts commit 196c81fdd438f7ac429d5639090a9816abb9760a.
Original patch may cause below deadlock, revert it.
write remount
- write_begin
- lock_page --- lock A
- prepare_write_begin
- f2fs_map_lock
- f2fs_enable_checkpoint
- down_write(cp_enable_rwsem) --- lock B
- sync_inode_sb
- writepages
- lock_page --- lock A
- down_read(cp_enable_rwsem) --- lock A |
| Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network. |
| In the Linux kernel, the following vulnerability has been resolved:
bus: fsl-mc: fix use-after-free in driver_override_show()
The driver_override_show() function reads the driver_override string
without holding the device_lock. However, driver_override_store() uses
driver_set_override(), which modifies and frees the string while holding
the device_lock.
This can result in a concurrent use-after-free if the string is freed
by the store function while being read by the show function.
Fix this by holding the device_lock around the read operation. |
