Summary
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (CVE-2026-23216)
* kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
* kernel: net: openvswitch: Avoid releasing netdev before teardown completes (CVE-2026-31508)
* kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581)
* kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)
* kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
* kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)
* kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)
* kernel: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows (CVE-2026-43501)
* kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)
* kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 9 | kernel | 0:5.14.0-687.15.1.el9_8 |
Vulnerabilities 11
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Critical 9.8
ip6_tunnel: clear skb2->cb[] in ip4ip6_err()
In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() Oskar Kjos reported the following problem. ip4ip6_err() calls icmp_send() on a cloned skb whose cb[] was written by the IPv6 receive path as struc…
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Critical 9.8
dlm: validate length in dlm_search_rsb_tree
In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-…
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Critical 9.8CVE-2026-43501 Public exploit
ipv6: rpl: reserve mac_len headroom when recompressed SRH grows
In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows ipv6_rpl_srh_rcv() decompresses an RFC 6554 Source Routing Header, swaps the next segment into ipv6_hdr->daddr, recompresses, t…
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High 7.8
net: bonding: fix use-after-free in bond_xmit_broadcast()
In the Linux kernel, the following vulnerability has been resolved: net: bonding: fix use-after-free in bond_xmit_broadcast() bond_xmit_broadcast() reuses the original skb for the last slave (determined by bond_is_last_slave()) and clones it for others. Concu…
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High 7.8
net: openvswitch: Avoid releasing netdev before teardown completes
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Avoid releasing netdev before teardown completes The patch cited in the Fixes tag below changed the teardown code for OVS ports to no longer unconditionally take the RTNL. A…
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High 7.8
net: mana: fix use-after-free in add_adev() error path
In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in add_adev() error path If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev). The auxiliary device has its rele…
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High 7.8
netfilter: ctnetlink: ensure safe access to master conntrack
In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp->master invalid. …
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High 7.8
RDMA/rxe: Fix double free in rxe_srq_from_init
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix double free in rxe_srq_from_init In rxe_srq_from_init(), the queue pointer 'q' is assigned to 'srq->rq.queue' before copying the SRQ number to user space. If copy_to_user() fail…
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High 7.8
RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() Sashiko points out the radix_tree itself is RCU safe, but nothing ever frees the mlx4_srq struct with RCU, and it isn't even accessed within …
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Unscored —
scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() In iscsit_dec_conn_usage_count(), the function calls complete() while holding the conn->conn_usage_lock. As soon as co…
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Unscored —
ALSA: 6fire: fix use-after-free on disconnect
In the Linux kernel, the following vulnerability has been resolved: ALSA: 6fire: fix use-after-free on disconnect In usb6fire_chip_abort(), the chip struct is allocated as the card's private data (via snd_card_new with sizeof(struct sfire_chip)). When snd_car…
References
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2440630
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2457829
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2460641
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2461471
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2464351
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2464449
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2467005
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2467234
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2480457
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2482166
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2482532