Linux: >> Linux Kernel >> 6.1.30 Security Vulnerabilities
In the Linux kernel, the following vulnerability has been resolved:
staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()
The "exc->key_len" is a u16 that comes from the user. If it's over
IW_ENCODING_TOKEN_MAX (64) that could lead to memory corruption.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
iavf: Fix use-after-free in free_netdev
We do netif_napi_add() for all allocated q_vectors[], but potentially
do netif_napi_del() for part of them, then kfree q_vectors and leave
invalid pointers at dev->napi_list.
Reproducer:
[root@host ~]# cat repro.sh
#!/bin/bash
pf_dbsf="0000:41:00.0"
vf0_dbsf="0000:41:02.0"
g_pids=()
function do_set_numvf()
{
echo 2 >/sys/bus/pci/devices/${pf_dbsf}/sriov_numvfs
sleep $((RANDOM%3+1))
echo 0 >/sys/bus/pci/devices/${pf_dbsf}/sriov_numvfs
sleep $((RANDOM%3+1))
}
function do_set_channel()
{
local nic=$(ls -1 --indicator-style=none /sys/bus/pci/devices/${vf0_dbsf}/net/)
[ -z "$nic" ] && { sleep $((RANDOM%3)) ; return 1; }
ifconfig $nic 192.168.18.5 netmask 255.255.255.0
ifconfig $nic up
ethtool -L $nic combined 1
ethtool -L $nic combined 4
sleep $((RANDOM%3))
}
function on_exit()
{
local pid
for pid in "${g_pids[@]}"; do
kill -0 "$pid" &>/dev/null && kill "$pid" &>/dev/null
done
g_pids=()
}
trap "on_exit; exit" EXIT
while :; do do_set_numvf ; done &
g_pids+=($!)
while :; do do_set_channel ; done &
g_pids+=($!)
wait
Result:
[ 4093.900222] ==================================================================
[ 4093.900230] BUG: KASAN: use-after-free in free_netdev+0x308/0x390
[ 4093.900232] Read of size 8 at addr ffff88b4dc145640 by task repro.sh/6699
[ 4093.900233]
[ 4093.900236] CPU: 10 PID: 6699 Comm: repro.sh Kdump: loaded Tainted: G O --------- -t - 4.18.0 #1
[ 4093.900238] Hardware name: Powerleader PR2008AL/H12DSi-N6, BIOS 2.0 04/09/2021
[ 4093.900239] Call Trace:
[ 4093.900244] dump_stack+0x71/0xab
[ 4093.900249] print_address_description+0x6b/0x290
[ 4093.900251] ? free_netdev+0x308/0x390
[ 4093.900252] kasan_report+0x14a/0x2b0
[ 4093.900254] free_netdev+0x308/0x390
[ 4093.900261] iavf_remove+0x825/0xd20 [iavf]
[ 4093.900265] pci_device_remove+0xa8/0x1f0
[ 4093.900268] device_release_driver_internal+0x1c6/0x460
[ 4093.900271] pci_stop_bus_device+0x101/0x150
[ 4093.900273] pci_stop_and_remove_bus_device+0xe/0x20
[ 4093.900275] pci_iov_remove_virtfn+0x187/0x420
[ 4093.900277] ? pci_iov_add_virtfn+0xe10/0xe10
[ 4093.900278] ? pci_get_subsys+0x90/0x90
[ 4093.900280] sriov_disable+0xed/0x3e0
[ 4093.900282] ? bus_find_device+0x12d/0x1a0
[ 4093.900290] i40e_free_vfs+0x754/0x1210 [i40e]
[ 4093.900298] ? i40e_reset_all_vfs+0x880/0x880 [i40e]
[ 4093.900299] ? pci_get_device+0x7c/0x90
[ 4093.900300] ? pci_get_subsys+0x90/0x90
[ 4093.900306] ? pci_vfs_assigned.part.7+0x144/0x210
[ 4093.900309] ? __mutex_lock_slowpath+0x10/0x10
[ 4093.900315] i40e_pci_sriov_configure+0x1fa/0x2e0 [i40e]
[ 4093.900318] sriov_numvfs_store+0x214/0x290
[ 4093.900320] ? sriov_totalvfs_show+0x30/0x30
[ 4093.900321] ? __mutex_lock_slowpath+0x10/0x10
[ 4093.900323] ? __check_object_size+0x15a/0x350
[ 4093.900326] kernfs_fop_write+0x280/0x3f0
[ 4093.900329] vfs_write+0x145/0x440
[ 4093.900330] ksys_write+0xab/0x160
[ 4093.900332] ? __ia32_sys_read+0xb0/0xb0
[ 4093.900334] ? fput_many+0x1a/0x120
[ 4093.900335] ? filp_close+0xf0/0x130
[ 4093.900338] do_syscall_64+0xa0/0x370
[ 4093.900339] ? page_fault+0x8/0x30
[ 4093.900341] entry_SYSCALL_64_after_hwframe+0x65/0xca
[ 4093.900357] RIP: 0033:0x7f16ad4d22c0
[ 4093.900359] Code: 73 01 c3 48 8b 0d d8 cb 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 24 2d 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 fe dd 01 00 48 89 04 24
[ 4093.900360] RSP: 002b:00007ffd6491b7f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4093.900362] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f16ad4d22c0
[ 4093.900363] RDX: 0000000000000002 RSI: 0000000001a41408 RDI: 0000000000000001
[ 4093.900364] RBP: 0000000001a41408 R08: 00007f16ad7a1780 R09: 00007f16ae1f2700
[ 4093.9003
---truncated---
CVSS Score
7.8
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: reject auth/assoc to AP with our address
If the AP uses our own address as its MLD address or BSSID, then
clearly something's wrong. Reject such connections so we don't
try and fail later.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write
When the oob buffer length is not in multiple of words, the oob write
function does out-of-bounds read on the oob source buffer at the last
iteration. Fix that by always checking length limit on the oob buffer
read and fill with 0xff when reaching the end of the buffer to the oob
registers.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check
The vdpa_nl_policy structure is used to validate the nlattr when parsing
the incoming nlmsg. It will ensure the attribute being described produces
a valid nlattr pointer in info->attrs before entering into each handler
in vdpa_nl_ops.
That is to say, the missing part in vdpa_nl_policy may lead to illegal
nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.
This patch adds the missing nla_policy for vdpa max vqp attr to avoid
such bugs.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: unmap and remove csa_va properly
Root PD BO should be reserved before unmap and remove
a bo_va from VM otherwise lockdep will complain.
v2: check fpriv->csa_va is not NULL instead of amdgpu_mcbp (christian)
[14616.936827] WARNING: CPU: 6 PID: 1711 at drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1762 amdgpu_vm_bo_del+0x399/0x3f0 [amdgpu]
[14616.937096] Call Trace:
[14616.937097] <TASK>
[14616.937102] amdgpu_driver_postclose_kms+0x249/0x2f0 [amdgpu]
[14616.937187] drm_file_free+0x1d6/0x300 [drm]
[14616.937207] drm_close_helper.isra.0+0x62/0x70 [drm]
[14616.937220] drm_release+0x5e/0x100 [drm]
[14616.937234] __fput+0x9f/0x280
[14616.937239] ____fput+0xe/0x20
[14616.937241] task_work_run+0x61/0x90
[14616.937246] exit_to_user_mode_prepare+0x215/0x220
[14616.937251] syscall_exit_to_user_mode+0x2a/0x60
[14616.937254] do_syscall_64+0x48/0x90
[14616.937257] entry_SYSCALL_64_after_hwframe+0x63/0xcd
CVSS Score
5.5
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: DR, fix memory leak in mlx5dr_cmd_create_reformat_ctx
when mlx5_cmd_exec failed in mlx5dr_cmd_create_reformat_ctx, the memory
pointed by 'in' is not released, which will cause memory leak. Move memory
release after mlx5_cmd_exec.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
btrfs: insert tree mod log move in push_node_left
There is a fairly unlikely race condition in tree mod log rewind that
can result in a kernel panic which has the following trace:
[530.569] BTRFS critical (device sda3): unable to find logical 0 length 4096
[530.585] BTRFS critical (device sda3): unable to find logical 0 length 4096
[530.602] BUG: kernel NULL pointer dereference, address: 0000000000000002
[530.618] #PF: supervisor read access in kernel mode
[530.629] #PF: error_code(0x0000) - not-present page
[530.641] PGD 0 P4D 0
[530.647] Oops: 0000 [#1] SMP
[530.654] CPU: 30 PID: 398973 Comm: below Kdump: loaded Tainted: G S O K 5.12.0-0_fbk13_clang_7455_gb24de3bdb045 #1
[530.680] Hardware name: Quanta Mono Lake-M.2 SATA 1HY9U9Z001G/Mono Lake-M.2 SATA, BIOS F20_3A15 08/16/2017
[530.703] RIP: 0010:__btrfs_map_block+0xaa/0xd00
[530.755] RSP: 0018:ffffc9002c2f7600 EFLAGS: 00010246
[530.767] RAX: ffffffffffffffea RBX: ffff888292e41000 RCX: f2702d8b8be15100
[530.784] RDX: ffff88885fda6fb8 RSI: ffff88885fd973c8 RDI: ffff88885fd973c8
[530.800] RBP: ffff888292e410d0 R08: ffffffff82fd7fd0 R09: 00000000fffeffff
[530.816] R10: ffffffff82e57fd0 R11: ffffffff82e57d70 R12: 0000000000000000
[530.832] R13: 0000000000001000 R14: 0000000000001000 R15: ffffc9002c2f76f0
[530.848] FS: 00007f38d64af000(0000) GS:ffff88885fd80000(0000) knlGS:0000000000000000
[530.866] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[530.880] CR2: 0000000000000002 CR3: 00000002b6770004 CR4: 00000000003706e0
[530.896] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[530.912] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[530.928] Call Trace:
[530.934] ? btrfs_printk+0x13b/0x18c
[530.943] ? btrfs_bio_counter_inc_blocked+0x3d/0x130
[530.955] btrfs_map_bio+0x75/0x330
[530.963] ? kmem_cache_alloc+0x12a/0x2d0
[530.973] ? btrfs_submit_metadata_bio+0x63/0x100
[530.984] btrfs_submit_metadata_bio+0xa4/0x100
[530.995] submit_extent_page+0x30f/0x360
[531.004] read_extent_buffer_pages+0x49e/0x6d0
[531.015] ? submit_extent_page+0x360/0x360
[531.025] btree_read_extent_buffer_pages+0x5f/0x150
[531.037] read_tree_block+0x37/0x60
[531.046] read_block_for_search+0x18b/0x410
[531.056] btrfs_search_old_slot+0x198/0x2f0
[531.066] resolve_indirect_ref+0xfe/0x6f0
[531.076] ? ulist_alloc+0x31/0x60
[531.084] ? kmem_cache_alloc_trace+0x12e/0x2b0
[531.095] find_parent_nodes+0x720/0x1830
[531.105] ? ulist_alloc+0x10/0x60
[531.113] iterate_extent_inodes+0xea/0x370
[531.123] ? btrfs_previous_extent_item+0x8f/0x110
[531.134] ? btrfs_search_path_in_tree+0x240/0x240
[531.146] iterate_inodes_from_logical+0x98/0xd0
[531.157] ? btrfs_search_path_in_tree+0x240/0x240
[531.168] btrfs_ioctl_logical_to_ino+0xd9/0x180
[531.179] btrfs_ioctl+0xe2/0x2eb0
This occurs when logical inode resolution takes a tree mod log sequence
number, and then while backref walking hits a rewind on a busy node
which has the following sequence of tree mod log operations (numbers
filled in from a specific example, but they are somewhat arbitrary)
REMOVE_WHILE_FREEING slot 532
REMOVE_WHILE_FREEING slot 531
REMOVE_WHILE_FREEING slot 530
...
REMOVE_WHILE_FREEING slot 0
REMOVE slot 455
REMOVE slot 454
REMOVE slot 453
...
REMOVE slot 0
ADD slot 455
ADD slot 454
ADD slot 453
...
ADD slot 0
MOVE src slot 0 -> dst slot 456 nritems 533
REMOVE slot 455
REMOVE slot 454
REMOVE slot 453
...
REMOVE slot 0
When this sequence gets applied via btrfs_tree_mod_log_rewind, it
allocates a fresh rewind eb, and first inserts the correct key info for
the 533 elements, then overwrites the first 456 of them, then decrements
the count by 456 via the add ops, then rewinds the move by doing a
memmove from 456:988->0:532. We have never written anything past 532,
---truncated---
CVSS Score
5.5
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix incomplete state save in rxe_requester
If a send packet is dropped by the IP layer in rxe_requester()
the call to rxe_xmit_packet() can fail with err == -EAGAIN.
To recover, the state of the wqe is restored to the state before
the packet was sent so it can be resent. However, the routines
that save and restore the state miss a significnt part of the
variable state in the wqe, the dma struct which is used to process
through the sge table. And, the state is not saved before the packet
is built which modifies the dma struct.
Under heavy stress testing with many QPs on a fast node sending
large messages to a slow node dropped packets are observed and
the resent packets are corrupted because the dma struct was not
restored. This patch fixes this behavior and allows the test cases
to succeed.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-10-04
In the Linux kernel, the following vulnerability has been resolved:
qed: Don't collect too many protection override GRC elements
In the protection override dump path, the firmware can return far too
many GRC elements, resulting in attempting to write past the end of the
previously-kmalloc'ed dump buffer.
This will result in a kernel panic with reason:
BUG: unable to handle kernel paging request at ADDRESS
where "ADDRESS" is just past the end of the protection override dump
buffer. The start address of the buffer is:
p_hwfn->cdev->dbg_features[DBG_FEATURE_PROTECTION_OVERRIDE].dump_buf
and the size of the buffer is buf_size in the same data structure.
The panic can be arrived at from either the qede Ethernet driver path:
[exception RIP: qed_grc_dump_addr_range+0x108]
qed_protection_override_dump at ffffffffc02662ed [qed]
qed_dbg_protection_override_dump at ffffffffc0267792 [qed]
qed_dbg_feature at ffffffffc026aa8f [qed]
qed_dbg_all_data at ffffffffc026b211 [qed]
qed_fw_fatal_reporter_dump at ffffffffc027298a [qed]
devlink_health_do_dump at ffffffff82497f61
devlink_health_report at ffffffff8249cf29
qed_report_fatal_error at ffffffffc0272baf [qed]
qede_sp_task at ffffffffc045ed32 [qede]
process_one_work at ffffffff81d19783
or the qedf storage driver path:
[exception RIP: qed_grc_dump_addr_range+0x108]
qed_protection_override_dump at ffffffffc068b2ed [qed]
qed_dbg_protection_override_dump at ffffffffc068c792 [qed]
qed_dbg_feature at ffffffffc068fa8f [qed]
qed_dbg_all_data at ffffffffc0690211 [qed]
qed_fw_fatal_reporter_dump at ffffffffc069798a [qed]
devlink_health_do_dump at ffffffff8aa95e51
devlink_health_report at ffffffff8aa9ae19
qed_report_fatal_error at ffffffffc0697baf [qed]
qed_hw_err_notify at ffffffffc06d32d7 [qed]
qed_spq_post at ffffffffc06b1011 [qed]
qed_fcoe_destroy_conn at ffffffffc06b2e91 [qed]
qedf_cleanup_fcport at ffffffffc05e7597 [qedf]
qedf_rport_event_handler at ffffffffc05e7bf7 [qedf]
fc_rport_work at ffffffffc02da715 [libfc]
process_one_work at ffffffff8a319663
Resolve this by clamping the firmware's return value to the maximum
number of legal elements the firmware should return.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-10-04