In the Linux kernel, the following vulnerability has been resolved:
iavf: Fix out-of-bounds when setting channels on remove
If we set channels greater during iavf_remove(), and waiting reset done
would be timeout, then returned with error but changed num_active_queues
directly, that will lead to OOB like the following logs. Because the
num_active_queues is greater than tx/rx_rings[] allocated actually.
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:
[ 3506.152887] iavf 0000:41:02.0: Removing device
[ 3510.400799] ==================================================================
[ 3510.400820] BUG: KASAN: slab-out-of-bounds in iavf_free_all_tx_resources+0x156/0x160 [iavf]
[ 3510.400823] Read of size 8 at addr ffff88b6f9311008 by task repro.sh/55536
[ 3510.400823]
[ 3510.400830] CPU: 101 PID: 55536 Comm: repro.sh Kdump: loaded Tainted: G O --------- -t - 4.18.0 #1
[ 3510.400832] Hardware name: Powerleader PR2008AL/H12DSi-N6, BIOS 2.0 04/09/2021
[ 3510.400835] Call Trace:
[ 3510.400851] dump_stack+0x71/0xab
[ 3510.400860] print_address_description+0x6b/0x290
[ 3510.400865] ? iavf_free_all_tx_resources+0x156/0x160 [iavf]
[ 3510.400868] kasan_report+0x14a/0x2b0
[ 3510.400873] iavf_free_all_tx_resources+0x156/0x160 [iavf]
[ 3510.400880] iavf_remove+0x2b6/0xc70 [iavf]
[ 3510.400884] ? iavf_free_all_rx_resources+0x160/0x160 [iavf]
[ 3510.400891] ? wait_woken+0x1d0/0x1d0
[ 3510.400895] ? notifier_call_chain+0xc1/0x130
[ 3510.400903] pci_device_remove+0xa8/0x1f0
[ 3510.400910] device_release_driver_internal+0x1c6/0x460
[ 3510.400916] pci_stop_bus_device+0x101/0x150
[ 3510.400919] pci_stop_and_remove_bus_device+0xe/0x20
[ 3510.400924] pci_iov_remove_virtfn+0x187/0x420
[ 3510.400927] ? pci_iov_add_virtfn+0xe10/0xe10
[ 3510.400929] ? pci_get_subsys+0x90/0x90
[ 3510.400932] sriov_disable+0xed/0x3e0
[ 3510.400936] ? bus_find_device+0x12d/0x1a0
[ 3510.400953] i40e_free_vfs+0x754/0x1210 [i40e]
[ 3510.400966] ? i40e_reset_all_vfs+0x880/0x880 [i40e]
[ 3510.400968] ? pci_get_device+0x7c/0x90
[ 3510.400970] ? pci_get_subsys+0x90/0x90
[ 3510.400982] ? pci_vfs_assigned.part.7+0x144/0x210
[ 3510.400987] ? __mutex_lock_slowpath+0x10/0x10
[ 3510.400996] i40e_pci_sriov_configure+0x1fa/0x2e0 [i40e]
[ 3510.401001] sriov_numvfs_store+0x214/0x290
[ 3510.401005] ? sriov_totalvfs_show+0x30/0x30
[ 3510.401007] ? __mutex_lock_slowpath+0x10/0x10
[ 3510.401011] ? __check_object_size+0x15a/0x350
[ 3510.401018] kernfs_fop_write+0x280/0x3f0
[ 3510.401022] vfs_write+0x145/0x440
[ 3510.401025] ksys_write+0xab/0x160
[ 3510.401028] ? __ia32_sys_read+0xb0/0xb0
[ 3510.401031] ? fput_many+0x1a/0x120
[ 3510.401032] ? filp_close+0xf0/0x130
[ 3510.401038] do_syscall_64+0xa0/0x370
[ 3510.401041] ? page_fault+0x8/0x30
[ 3510.401043] entry_SYSCALL_64_after_hwframe+0x65/0xca
[ 3510.401073] RIP: 0033:0x7f3a9bb842c0
[ 3510.401079] 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
---truncated---
iavf: Fix out-of-bounds when setting channels on remove
If we set channels greater during iavf_remove(), and waiting reset done
would be timeout, then returned with error but changed num_active_queues
directly, that will lead to OOB like the following logs. Because the
num_active_queues is greater than tx/rx_rings[] allocated actually.
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:
[ 3506.152887] iavf 0000:41:02.0: Removing device
[ 3510.400799] ==================================================================
[ 3510.400820] BUG: KASAN: slab-out-of-bounds in iavf_free_all_tx_resources+0x156/0x160 [iavf]
[ 3510.400823] Read of size 8 at addr ffff88b6f9311008 by task repro.sh/55536
[ 3510.400823]
[ 3510.400830] CPU: 101 PID: 55536 Comm: repro.sh Kdump: loaded Tainted: G O --------- -t - 4.18.0 #1
[ 3510.400832] Hardware name: Powerleader PR2008AL/H12DSi-N6, BIOS 2.0 04/09/2021
[ 3510.400835] Call Trace:
[ 3510.400851] dump_stack+0x71/0xab
[ 3510.400860] print_address_description+0x6b/0x290
[ 3510.400865] ? iavf_free_all_tx_resources+0x156/0x160 [iavf]
[ 3510.400868] kasan_report+0x14a/0x2b0
[ 3510.400873] iavf_free_all_tx_resources+0x156/0x160 [iavf]
[ 3510.400880] iavf_remove+0x2b6/0xc70 [iavf]
[ 3510.400884] ? iavf_free_all_rx_resources+0x160/0x160 [iavf]
[ 3510.400891] ? wait_woken+0x1d0/0x1d0
[ 3510.400895] ? notifier_call_chain+0xc1/0x130
[ 3510.400903] pci_device_remove+0xa8/0x1f0
[ 3510.400910] device_release_driver_internal+0x1c6/0x460
[ 3510.400916] pci_stop_bus_device+0x101/0x150
[ 3510.400919] pci_stop_and_remove_bus_device+0xe/0x20
[ 3510.400924] pci_iov_remove_virtfn+0x187/0x420
[ 3510.400927] ? pci_iov_add_virtfn+0xe10/0xe10
[ 3510.400929] ? pci_get_subsys+0x90/0x90
[ 3510.400932] sriov_disable+0xed/0x3e0
[ 3510.400936] ? bus_find_device+0x12d/0x1a0
[ 3510.400953] i40e_free_vfs+0x754/0x1210 [i40e]
[ 3510.400966] ? i40e_reset_all_vfs+0x880/0x880 [i40e]
[ 3510.400968] ? pci_get_device+0x7c/0x90
[ 3510.400970] ? pci_get_subsys+0x90/0x90
[ 3510.400982] ? pci_vfs_assigned.part.7+0x144/0x210
[ 3510.400987] ? __mutex_lock_slowpath+0x10/0x10
[ 3510.400996] i40e_pci_sriov_configure+0x1fa/0x2e0 [i40e]
[ 3510.401001] sriov_numvfs_store+0x214/0x290
[ 3510.401005] ? sriov_totalvfs_show+0x30/0x30
[ 3510.401007] ? __mutex_lock_slowpath+0x10/0x10
[ 3510.401011] ? __check_object_size+0x15a/0x350
[ 3510.401018] kernfs_fop_write+0x280/0x3f0
[ 3510.401022] vfs_write+0x145/0x440
[ 3510.401025] ksys_write+0xab/0x160
[ 3510.401028] ? __ia32_sys_read+0xb0/0xb0
[ 3510.401031] ? fput_many+0x1a/0x120
[ 3510.401032] ? filp_close+0xf0/0x130
[ 3510.401038] do_syscall_64+0xa0/0x370
[ 3510.401041] ? page_fault+0x8/0x30
[ 3510.401043] entry_SYSCALL_64_after_hwframe+0x65/0xca
[ 3510.401073] RIP: 0033:0x7f3a9bb842c0
[ 3510.401079] 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
---truncated---
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
|
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| Linux | Linux | affected |
|
Configuration 1 [-]
|
No data.
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References
History
Tue, 03 Feb 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-125 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc8:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* |
|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Wed, 08 Oct 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Wed, 08 Oct 2025 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Tue, 07 Oct 2025 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: iavf: Fix out-of-bounds when setting channels on remove If we set channels greater during iavf_remove(), and waiting reset done would be timeout, then returned with error but changed num_active_queues directly, that will lead to OOB like the following logs. Because the num_active_queues is greater than tx/rx_rings[] allocated actually. 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: [ 3506.152887] iavf 0000:41:02.0: Removing device [ 3510.400799] ================================================================== [ 3510.400820] BUG: KASAN: slab-out-of-bounds in iavf_free_all_tx_resources+0x156/0x160 [iavf] [ 3510.400823] Read of size 8 at addr ffff88b6f9311008 by task repro.sh/55536 [ 3510.400823] [ 3510.400830] CPU: 101 PID: 55536 Comm: repro.sh Kdump: loaded Tainted: G O --------- -t - 4.18.0 #1 [ 3510.400832] Hardware name: Powerleader PR2008AL/H12DSi-N6, BIOS 2.0 04/09/2021 [ 3510.400835] Call Trace: [ 3510.400851] dump_stack+0x71/0xab [ 3510.400860] print_address_description+0x6b/0x290 [ 3510.400865] ? iavf_free_all_tx_resources+0x156/0x160 [iavf] [ 3510.400868] kasan_report+0x14a/0x2b0 [ 3510.400873] iavf_free_all_tx_resources+0x156/0x160 [iavf] [ 3510.400880] iavf_remove+0x2b6/0xc70 [iavf] [ 3510.400884] ? iavf_free_all_rx_resources+0x160/0x160 [iavf] [ 3510.400891] ? wait_woken+0x1d0/0x1d0 [ 3510.400895] ? notifier_call_chain+0xc1/0x130 [ 3510.400903] pci_device_remove+0xa8/0x1f0 [ 3510.400910] device_release_driver_internal+0x1c6/0x460 [ 3510.400916] pci_stop_bus_device+0x101/0x150 [ 3510.400919] pci_stop_and_remove_bus_device+0xe/0x20 [ 3510.400924] pci_iov_remove_virtfn+0x187/0x420 [ 3510.400927] ? pci_iov_add_virtfn+0xe10/0xe10 [ 3510.400929] ? pci_get_subsys+0x90/0x90 [ 3510.400932] sriov_disable+0xed/0x3e0 [ 3510.400936] ? bus_find_device+0x12d/0x1a0 [ 3510.400953] i40e_free_vfs+0x754/0x1210 [i40e] [ 3510.400966] ? i40e_reset_all_vfs+0x880/0x880 [i40e] [ 3510.400968] ? pci_get_device+0x7c/0x90 [ 3510.400970] ? pci_get_subsys+0x90/0x90 [ 3510.400982] ? pci_vfs_assigned.part.7+0x144/0x210 [ 3510.400987] ? __mutex_lock_slowpath+0x10/0x10 [ 3510.400996] i40e_pci_sriov_configure+0x1fa/0x2e0 [i40e] [ 3510.401001] sriov_numvfs_store+0x214/0x290 [ 3510.401005] ? sriov_totalvfs_show+0x30/0x30 [ 3510.401007] ? __mutex_lock_slowpath+0x10/0x10 [ 3510.401011] ? __check_object_size+0x15a/0x350 [ 3510.401018] kernfs_fop_write+0x280/0x3f0 [ 3510.401022] vfs_write+0x145/0x440 [ 3510.401025] ksys_write+0xab/0x160 [ 3510.401028] ? __ia32_sys_read+0xb0/0xb0 [ 3510.401031] ? fput_many+0x1a/0x120 [ 3510.401032] ? filp_close+0xf0/0x130 [ 3510.401038] do_syscall_64+0xa0/0x370 [ 3510.401041] ? page_fault+0x8/0x30 [ 3510.401043] entry_SYSCALL_64_after_hwframe+0x65/0xca [ 3510.401073] RIP: 0033:0x7f3a9bb842c0 [ 3510.401079] 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 ---truncated--- | |
| Title | iavf: Fix out-of-bounds when setting channels on remove | |
| References |
|
|
Projects
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MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-10-07T15:21:19.619Z
Reserved: 2025-10-07T15:16:59.662Z
Link: CVE-2023-53659
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2025-10-07T16:15:49.573
Modified: 2026-02-03T19:52:28.803
Link: CVE-2023-53659
Redhat
OpenCVE Enrichment
Updated: 2025-10-08T13:36:46Z
Weaknesses