In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc()
syzbot found hanging tasks waiting on rtnl_lock [1]
A reproducer is available in the syzbot bug.
When a request to add multiple actions with the same index is sent, the
second request will block forever on the first request. This holds
rtnl_lock, and causes tasks to hang.
Return -EAGAIN to prevent infinite looping, while keeping documented
behavior.
[1]
INFO: task kworker/1:0:5088 blocked for more than 143 seconds.
Not tainted 6.9.0-rc4-syzkaller-00173-g3cdb45594619 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:23744 pid:5088 tgid:5088 ppid:2 flags:0x00004000
Workqueue: events_power_efficient reg_check_chans_work
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
wiphy_lock include/net/cfg80211.h:5953 [inline]
reg_leave_invalid_chans net/wireless/reg.c:2466 [inline]
reg_check_chans_work+0x10a/0x10e0 net/wireless/reg.c:2481
Metrics
Affected Vendors & Products
References
History
Thu, 12 Sep 2024 20:30:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
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Wed, 11 Sep 2024 13:30:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
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Fri, 06 Sep 2024 13:45:00 +0000
Type | Values Removed | Values Added |
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First Time appeared |
Redhat rhel Aus
Redhat rhel E4s Redhat rhel Tus |
|
CPEs | cpe:/a:redhat:rhel_tus:8.4::nfv cpe:/o:redhat:rhel_aus:8.4 cpe:/o:redhat:rhel_e4s:8.4 cpe:/o:redhat:rhel_tus:8.4 |
|
Vendors & Products |
Redhat rhel Aus
Redhat rhel E4s Redhat rhel Tus |
Mon, 26 Aug 2024 06:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Redhat
Redhat rhel Eus |
|
CPEs | cpe:/a:redhat:rhel_eus:9.2 cpe:/a:redhat:rhel_eus:9.2::nfv |
|
Vendors & Products |
Redhat
Redhat rhel Eus |
Wed, 21 Aug 2024 17:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Linux
Linux linux Kernel |
|
Weaknesses | CWE-835 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:* |
|
Vendors & Products |
Linux
Linux linux Kernel |
Wed, 14 Aug 2024 01:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Weaknesses | CWE-835 | CWE-833 |
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-07-12T12:37:37.791Z
Updated: 2024-09-11T17:34:19.797Z
Reserved: 2024-07-12T12:17:45.607Z
Link: CVE-2024-40995
Vulnrichment
Updated: 2024-08-02T04:39:56.074Z
NVD
Status : Analyzed
Published: 2024-07-12T13:15:20.680
Modified: 2024-08-21T16:33:00.850
Link: CVE-2024-40995
Redhat