kernel security update
The Linux Kernel, the operating system core itself. Security Fix(es): In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix race between dump and ip_set_list resize The release path of ip_set_dump_do() and ip_set_dump_done() read inst->ip_set_list via ip_set_ref_netlink(), a plain rcu_dereference_raw() of the array pointer. These run from netlink_recvmsg() without the nfnl mutex and without an RCU read-side critical section. A concurrent ip_set_create() can grow the array: it publishes the new array, calls synchronize_net() and then kvfree()s the old one. Since the dump paths read the array outside any RCU reader, synchronize_net() does not wait for them and the old array can be freed while they still index into it, causing a use-after-free. The dumped set itself stays pinned via set->ref_netlink, so only the array load needs protecting. Take rcu_read_lock() around it, matching ip_set_get_byname() and __ip_set_put_byindex(). BUG: KASAN: slab-use-after-free in ip_set_dump_do (net/netfilter/ipset/ip_set_core.c:1697) Read of size 8 at addr ffff88800b5c4018 by task exploit/150 Call Trace: ... kasan_report (mm/kasan/report.c:595) ip_set_dump_do (net/netfilter/ipset/ip_set_core.c:1697) netlink_dump (net/netlink/af_netlink.c:2325) netlink_recvmsg (net/netlink/af_netlink.c:1976) sock_recvmsg (net/socket.c:1159) __sys_recvfrom (net/socket.c:2315) ... Oops: general protection fault, probably for non-canonical address ... KASAN NOPTI KASAN: maybe wild
OESA-2026-4185
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:OESA-2026-4185
kernel
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 5.10.0-335.0.0.236.oe2203sp4
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.10.0-335.0.0.236.oe2203sp4"
}
]
}
],
"package": {
"name": "kernel",
"purl": "pkg:rpm/openEuler/kernel&distro=openEuler-22.03-LTS-SP4",
"ecosystem": "openEuler:22.03-LTS-SP4"
},
"database_specific": {
"source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4185.json"
},
"ecosystem_specific": {
"src": [
"kernel-5.10.0-335.0.0.236.oe2203sp4.src.rpm"
],
"x86_64": [
"bpftool-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"bpftool-debuginfo-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-debuginfo-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-debugsource-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-devel-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-headers-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-source-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-tools-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-tools-debuginfo-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"kernel-tools-devel-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"perf-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"perf-debuginfo-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"python3-perf-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm",
"python3-perf-debuginfo-5.10.0-335.0.0.236.oe2203sp4.x86_64.rpm"
],
"aarch64": [
"bpftool-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"bpftool-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-debugsource-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-devel-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-headers-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-source-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-tools-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-tools-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"kernel-tools-devel-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"perf-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"perf-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"python3-perf-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm",
"python3-perf-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64.rpm"
]
}
}
]Publisher severity
critical
Source reference: /database_specific/severity
- Event
- #52134 · Revision 1
- Added to Heist Feed
- Publisher date