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Search Results (19586 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-23195 | 1 Linux | 1 Linux Kernel | 2026-04-16 | 7 High |
| In the Linux kernel, the following vulnerability has been resolved: cgroup/dmem: avoid pool UAF An UAF issue was observed: BUG: KASAN: slab-use-after-free in page_counter_uncharge+0x65/0x150 Write of size 8 at addr ffff888106715440 by task insmod/527 CPU: 4 UID: 0 PID: 527 Comm: insmod 6.19.0-rc7-next-20260129+ #11 Tainted: [O]=OOT_MODULE Call Trace: <TASK> dump_stack_lvl+0x82/0xd0 kasan_report+0xca/0x100 kasan_check_range+0x39/0x1c0 page_counter_uncharge+0x65/0x150 dmem_cgroup_uncharge+0x1f/0x260 Allocated by task 527: Freed by task 0: The buggy address belongs to the object at ffff888106715400 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 64 bytes inside of freed 512-byte region [ffff888106715400, ffff888106715600) The buggy address belongs to the physical page: Memory state around the buggy address: ffff888106715300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888106715380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888106715400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888106715480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888106715500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb The issue occurs because a pool can still be held by a caller after its associated memory region is unregistered. The current implementation frees the pool even if users still hold references to it (e.g., before uncharge operations complete). This patch adds a reference counter to each pool, ensuring that a pool is only freed when its reference count drops to zero. | ||||
| CVE-2026-23209 | 1 Linux | 1 Linux Kernel | 2026-04-16 | 7.8 High |
| In the Linux kernel, the following vulnerability has been resolved: macvlan: fix error recovery in macvlan_common_newlink() valis provided a nice repro to crash the kernel: ip link add p1 type veth peer p2 ip link set address 00:00:00:00:00:20 dev p1 ip link set up dev p1 ip link set up dev p2 ip link add mv0 link p2 type macvlan mode source ip link add invalid% link p2 type macvlan mode source macaddr add 00:00:00:00:00:20 ping -c1 -I p1 1.2.3.4 He also gave a very detailed analysis: <quote valis> The issue is triggered when a new macvlan link is created with MACVLAN_MODE_SOURCE mode and MACVLAN_MACADDR_ADD (or MACVLAN_MACADDR_SET) parameter, lower device already has a macvlan port and register_netdevice() called from macvlan_common_newlink() fails (e.g. because of the invalid link name). In this case macvlan_hash_add_source is called from macvlan_change_sources() / macvlan_common_newlink(): This adds a reference to vlan to the port's vlan_source_hash using macvlan_source_entry. vlan is a pointer to the priv data of the link that is being created. When register_netdevice() fails, the error is returned from macvlan_newlink() to rtnl_newlink_create(): if (ops->newlink) err = ops->newlink(dev, ¶ms, extack); else err = register_netdevice(dev); if (err < 0) { free_netdev(dev); goto out; } and free_netdev() is called, causing a kvfree() on the struct net_device that is still referenced in the source entry attached to the lower device's macvlan port. Now all packets sent on the macvlan port with a matching source mac address will trigger a use-after-free in macvlan_forward_source(). </quote valis> With all that, my fix is to make sure we call macvlan_flush_sources() regardless of @create value whenever "goto destroy_macvlan_port;" path is taken. Many thanks to valis for following up on this issue. | ||||
| CVE-2006-1858 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| SCTP in Linux kernel before 2.6.16.17 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a chunk length that is inconsistent with the actual length of provided parameters. | ||||
| CVE-2006-4623 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| The Unidirectional Lightweight Encapsulation (ULE) decapsulation component in dvb-core/dvb_net.c in the dvb driver in the Linux kernel 2.6.17.8 allows remote attackers to cause a denial of service (crash) via an SNDU length of 0 in a ULE packet. | ||||
| CVE-2006-4663 | 1 Linux | 1 Linux Kernel | 2026-04-16 | 7.8 High |
| The source code tar archive of the Linux kernel 2.6.16, 2.6.17.11, and possibly other versions specifies weak permissions (0666 and 0777) for certain files and directories, which might allow local users to insert Trojan horse source code that would be used during the next kernel compilation. NOTE: another researcher disputes the vulnerability, stating that he finds "Not a single world-writable file or directory." CVE analysis as of 20060908 indicates that permissions will only be weak under certain unusual or insecure scenarios | ||||
| CVE-1999-0183 | 2 Linux, Tftp | 2 Linux Kernel, Tftp | 2026-04-16 | N/A |
| Linux implementations of TFTP would allow access to files outside the restricted directory. | ||||
| CVE-1999-0195 | 2 Linux, Sgi | 2 Linux Kernel, Irix | 2026-04-16 | N/A |
| Denial of service in RPC portmapper allows attackers to register or unregister RPC services or spoof RPC services using a spoofed source IP address such as 127.0.0.1. | ||||
| CVE-1999-0128 | 5 Digital, Ibm, Linux and 2 more | 9 Osf 1, Aix, Sng and 6 more | 2026-04-16 | N/A |
| Oversized ICMP ping packets can result in a denial of service, aka Ping o' Death. | ||||
| CVE-1999-0171 | 1 Linux | 1 Linux Kernel | 2026-04-16 | N/A |
| Denial of service in syslog by sending it a large number of superfluous messages. | ||||
| CVE-1999-0165 | 3 Bsdi, Linux, Sun | 5 Bsd Os, Linux Kernel, Nfs and 2 more | 2026-04-16 | N/A |
| NFS cache poisoning. | ||||
| CVE-1999-0138 | 7 Apple, Digital, Freebsd and 4 more | 9 A Ux, Osf 1, Freebsd and 6 more | 2026-04-16 | N/A |
| The suidperl and sperl program do not give up root privileges when changing UIDs back to the original users, allowing root access. | ||||
| CVE-2006-1856 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions. | ||||
| CVE-2006-1859 | 1 Linux | 1 Linux Kernel | 2026-04-16 | N/A |
| Memory leak in __setlease in fs/locks.c in Linux kernel before 2.6.16.16 allows attackers to cause a denial of service (memory consumption) via unspecified actions related to an "uninitialised return value," aka "slab leak." | ||||
| CVE-2006-1860 | 1 Linux | 1 Linux Kernel | 2026-04-16 | N/A |
| lease_init in fs/locks.c in Linux kernel before 2.6.16.16 allows attackers to cause a denial of service (fcntl_setlease lockup) via actions that cause lease_init to free a lock that might not have been allocated on the stack. | ||||
| CVE-2006-1862 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| The virtual memory implementation in Linux kernel 2.6.x allows local users to cause a denial of service (panic) by running lsof a large number of times in a way that produces a heavy system load. | ||||
| CVE-2006-1863 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| Directory traversal vulnerability in CIFS in Linux 2.6.16 and earlier allows local users to escape chroot restrictions for an SMB-mounted filesystem via "..\\" sequences, a similar vulnerability to CVE-2006-1864. | ||||
| CVE-2006-1864 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| Directory traversal vulnerability in smbfs in Linux 2.6.16 and earlier allows local users to escape chroot restrictions for an SMB-mounted filesystem via "..\\" sequences, a similar vulnerability to CVE-2006-1863. | ||||
| CVE-2006-2071 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| Linux kernel 2.4.x and 2.6.x up to 2.6.16 allows local users to bypass IPC permissions and modify a readonly attachment of shared memory by using mprotect to give write permission to the attachment. NOTE: some original raw sources combined this issue with CVE-2006-1524, but they are different bugs. | ||||
| CVE-2006-2444 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-16 | N/A |
| The snmp_trap_decode function in the SNMP NAT helper for Linux kernel before 2.6.16.18 allows remote attackers to cause a denial of service (crash) via unspecified remote attack vectors that cause failures in snmp_trap_decode that trigger (1) frees of random memory or (2) frees of previously-freed memory (double-free) by snmp_trap_decode as well as its calling function, as demonstrated via certain test cases of the PROTOS SNMP test suite. | ||||
| CVE-2006-2445 | 1 Linux | 1 Linux Kernel | 2026-04-16 | N/A |
| Race condition in run_posix_cpu_timers in Linux kernel before 2.6.16.21 allows local users to cause a denial of service (BUG_ON crash) by causing one CPU to attach a timer to a process that is exiting. | ||||