CVE-2022-50452
published 2025-10-01CVE-2022-50452: In the Linux kernel, the following vulnerability has been resolved: net: sched: cake: fix null pointer access issue when cake_init() fails When the default…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: sched: cake: fix null pointer access issue when cake_init() fails
When the default qdisc is cake, if the qdisc of dev_queue fails to be
inited during mqprio_init(), cake_reset() is invoked to clear
resources. In this case, the tins is NULL, and it will cause gpf issue.
The process is as follows:
qdisc_create_dflt()
cake_init()
q->tins = kvcalloc(...) --->failed, q->tins is NULL
...
qdisc_put()
...
cake_reset()
...
cake_dequeue_one()
b = &q->tins[...] --->q->tins is NULL
The following is the Call Trace information:
general protection fault, probably for non-canonical address
0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:cake_dequeue_one+0xc9/0x3c0
Call Trace:
cake_reset+0xb1/0x140
qdisc_reset+0xed/0x6f0
qdisc_destroy+0x82/0x4c0
qdisc_put+0x9e/0xb0
qdisc_create_dflt+0x2c3/0x4a0
mqprio_init+0xa71/0x1760
qdisc_create+0x3eb/0x1000
tc_modify_qdisc+0x408/0x1720
rtnetlink_rcv_msg+0x38e/0xac0
netlink_rcv_skb+0x12d/0x3a0
netlink_unicast+0x4a2/0x740
netlink_sendmsg+0x826/0xcc0
sock_sendmsg+0xc5/0x100
____sys_sendmsg+0x583/0x690
___sys_sendmsg+0xe8/0x160
__sys_sendmsg+0xbf/0x160
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f89e5122d04
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.6-1 (bookworm) | linux 6.0.6-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 046f6fd5daefac7f5abdafb436b30f63bc7c602b < 86aa1390898146f1de277bb6d2a8ed7fc7a43f12 | 86aa1390898146f1de277bb6d2a8ed7fc7a43f12 |
| linux | linux | >= 046f6fd5daefac7f5abdafb436b30f63bc7c602b < bc8301ea7e7f1bb9d2ba2fcdf7b5ec2f0792b47e | bc8301ea7e7f1bb9d2ba2fcdf7b5ec2f0792b47e |
| linux | linux | >= 046f6fd5daefac7f5abdafb436b30f63bc7c602b < ae48bee2830bf216800e1447baca39541e27a12e | ae48bee2830bf216800e1447baca39541e27a12e |
| linux | linux | >= 046f6fd5daefac7f5abdafb436b30f63bc7c602b < 154f4c06d9dbec1a14e91286c70b6305810302e0 | 154f4c06d9dbec1a14e91286c70b6305810302e0 |
| linux | linux | >= 046f6fd5daefac7f5abdafb436b30f63bc7c602b < 1dc0a019550fd38ec6cab2d73c90df2bd659c96b | 1dc0a019550fd38ec6cab2d73c90df2bd659c96b |
| linux | linux | >= 046f6fd5daefac7f5abdafb436b30f63bc7c602b < 51f9a8921ceacd7bf0d3f47fa867a64988ba1dcb | 51f9a8921ceacd7bf0d3f47fa867a64988ba1dcb |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.158-1 | 5.10.158-1 |
| linux | linux_kernel | >= 0 < 6.0.6-1 | 6.0.6-1 |
| linux | linux_kernel | >= 0 < 6.0.6-1 | 6.0.6-1 |
| linux | linux_kernel | >= 0 < 6.0.6-1 | 6.0.6-1 |
| linux | linux_kernel | >= 4.19 < 4.19.264 | 4.19.264 |
| linux | linux_kernel | >= 4.20 < 5.4.221 | 5.4.221 |
| linux | linux_kernel | >= 5.11 < 5.15.76 | 5.15.76 |
| linux | linux_kernel | >= 5.16 < 6.0.6 | 6.0.6 |
| linux | linux_kernel | >= 5.5 < 5.10.152 | 5.10.152 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2022-50452: In the Linux kernel, the following vulnerability has been resolved: net: sched: cake: fix null pointer access issue when cake_init() fails When the de
osv·2025-10-01·CVSS 5.5
CVE-2022-50452 [MEDIUM] CVE-2022-50452: In the Linux kernel, the following vulnerability has been resolved: net: sched: cake: fix null pointer access issue when cake_init() fails When the de
In the Linux kernel, the following vulnerability has been resolved: net: sched: cake: fix null pointer access issue when cake_init() fails When the default qdisc is cake, if the qdisc of dev_queue fails to be inited during mqprio_init(), cake_reset() is invoked to clear resources. In this case, the tins is NULL, and it will cause gpf issue. The process is as follows: qdisc_create_dflt() cake_init() q->tins = kvcalloc(...) --->failed, q->tins is NULL ... qdisc_put() ... cake_reset() ... cake_dequeue_one() b = &q->tins[...] --->q->tins is NULL The following is the Call Trace information: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:cake_dequeue_one+
GHSA
GHSA-x9pv-29h8-5m3m: In the Linux kernel, the following vulnerability has been resolved:
net: sched: cake: fix null pointer access issue when cake_init() fails
When the
ghsa_unreviewed·2025-10-01
CVE-2022-50452 [MEDIUM] CWE-476 GHSA-x9pv-29h8-5m3m: In the Linux kernel, the following vulnerability has been resolved:
net: sched: cake: fix null pointer access issue when cake_init() fails
When the
In the Linux kernel, the following vulnerability has been resolved:
net: sched: cake: fix null pointer access issue when cake_init() fails
When the default qdisc is cake, if the qdisc of dev_queue fails to be
inited during mqprio_init(), cake_reset() is invoked to clear
resources. In this case, the tins is NULL, and it will cause gpf issue.
The process is as follows:
qdisc_create_dflt()
cake_init()
q->tins = kvcalloc(...) --->failed, q->tins is NULL
...
qdisc_put()
...
cake_reset()
...
cake_dequeue_one()
b = &q->tins[...] --->q->tins is NULL
The following is the Call Trace information:
general protection fault, probably for non-canonical address
0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:cake_dequeue_
Red Hat
kernel: net: sched: cake: fix null pointer access issue when cake_init() fails
vendor_redhat·2025-10-01·CVSS 5.5
CVE-2022-50452 [MEDIUM] CWE-476 kernel: net: sched: cake: fix null pointer access issue when cake_init() fails
kernel: net: sched: cake: fix null pointer access issue when cake_init() fails
In the Linux kernel, the following vulnerability has been resolved:
net: sched: cake: fix null pointer access issue when cake_init() fails
When the default qdisc is cake, if the qdisc of dev_queue fails to be
inited during mqprio_init(), cake_reset() is invoked to clear
resources. In this case, the tins is NULL, and it will cause gpf issue.
The process is as follows:
qdisc_create_dflt()
cake_init()
q->tins = kvcalloc(...) --->failed, q->tins is NULL
...
qdisc_put()
...
cake_reset()
...
cake_dequeue_one()
b = &q->tins[...] --->q->tins is NULL
The following is the Call Trace information:
general protection fault, probably for non-canonical address
0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-de
Debian
CVE-2022-50452: linux - In the Linux kernel, the following vulnerability has been resolved: net: sched:...
vendor_debian·2022·CVSS 5.5
CVE-2022-50452 [MEDIUM] CVE-2022-50452: linux - In the Linux kernel, the following vulnerability has been resolved: net: sched:...
In the Linux kernel, the following vulnerability has been resolved: net: sched: cake: fix null pointer access issue when cake_init() fails When the default qdisc is cake, if the qdisc of dev_queue fails to be inited during mqprio_init(), cake_reset() is invoked to clear resources. In this case, the tins is NULL, and it will cause gpf issue. The process is as follows: qdisc_create_dflt() cake_init() q->tins = kvcalloc(...) --->failed, q->tins is NULL ... qdisc_put() ... cake_reset() ... cake_dequeue_one() b = &q->tins[...] --->q->tins is NULL The following is the Call Trace information: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:cake_dequeue_one+
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/154f4c06d9dbec1a14e91286c70b6305810302e0https://git.kernel.org/stable/c/1dc0a019550fd38ec6cab2d73c90df2bd659c96bhttps://git.kernel.org/stable/c/51f9a8921ceacd7bf0d3f47fa867a64988ba1dcbhttps://git.kernel.org/stable/c/86aa1390898146f1de277bb6d2a8ed7fc7a43f12https://git.kernel.org/stable/c/ae48bee2830bf216800e1447baca39541e27a12ehttps://git.kernel.org/stable/c/bc8301ea7e7f1bb9d2ba2fcdf7b5ec2f0792b47e
2025-10-01
Published