CVSS: 7.2EPSS: 0%CPEs: 4EXPL: 0CVE-2024-26741 – dccp/tcp: Unhash sk from ehash for tb2 alloc failure after check_estalblished().
https://notcve.org/view.php?id=CVE-2024-26741
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: dccp/tcp: Unhash sk from ehash for tb2 alloc failure after check_estalblished(). syzkaller reported a warning [0] in inet_csk_destroy_sock() with no repro. WARN_ON(inet_sk(sk)->inet_num && !inet_csk(sk)->icsk_bind_hash); However, the syzkaller's log hinted that connect() failed just before the warning due to FAULT_INJECTION. [1] When connect() is called for an unbound socket, we search for an available ephemeral port. If a bhash bucket exis... • https://git.kernel.org/stable/c/28044fc1d4953b07acec0da4d2fc4784c57ea6fb •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-26740 – net/sched: act_mirred: use the backlog for mirred ingress
https://notcve.org/view.php?id=CVE-2024-26740
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: use the backlog for mirred ingress The test Davide added in commit ca22da2fbd69 ("act_mirred: use the backlog for nested calls to mirred ingress") hangs our testing VMs every 10 or so runs, with the familiar tcp_v4_rcv -> tcp_v4_rcv deadlock reported by lockdep. The problem as previously described by Davide (see Link) is that if we reverse flow of traffic with the redirect (egress -> ingress) we may reach the same soc... • https://git.kernel.org/stable/c/53592b3640019f2834701093e38272fdfd367ad8 • CWE-833: Deadlock •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-26739 – net/sched: act_mirred: don't override retval if we already lost the skb
https://notcve.org/view.php?id=CVE-2024-26739
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it. En el kernel de Linux, se ha resuelto la s... • https://git.kernel.org/stable/c/e5cf1baf92cb785b90390db1c624948e70c8b8bd • CWE-416: Use After Free •
CVSS: 6.2EPSS: 0%CPEs: 3EXPL: 0CVE-2024-26738 – powerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller
https://notcve.org/view.php?id=CVE-2024-26738
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller When a PCI device is dynamically added, the kernel oopses with a NULL pointer dereference: BUG: Kernel NULL pointer dereference on read at 0x00000030 Faulting instruction address: 0xc0000000006bbe5c Oops: Kernel access of bad area, sig: 11 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries Modules linked in: rpadlpar_io rpaphp rpcsec_gss_krb5 auth_rpcgs... • https://git.kernel.org/stable/c/a940904443e432623579245babe63e2486ff327b •
CVSS: 5.9EPSS: 0%CPEs: 5EXPL: 0CVE-2024-26737 – bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel
https://notcve.org/view.php?id=CVE-2024-26737
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel The following race is possible between bpf_timer_cancel_and_free and bpf_timer_cancel. It will lead a UAF on the timer->timer. bpf_timer_cancel(); spin_lock(); t = timer->time; spin_unlock(); bpf_timer_cancel_and_free(); spin_lock(); t = timer->timer; timer->timer = NULL; spin_unlock(); hrtimer_cancel(&t->timer); kfree(t); /* UAF on t */ hrtimer_cancel(&t->timer); In bpf... • https://git.kernel.org/stable/c/b00628b1c7d595ae5b544e059c27b1f5828314b4 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-26736 – afs: Increase buffer size in afs_update_volume_status()
https://notcve.org/view.php?id=CVE-2024-26736
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: afs: Increase buffer size in afs_update_volume_status() The max length of volume->vid value is 20 characters. So increase idbuf[] size up to 24 to avoid overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE. [DH: Actually, it's 20 + NUL, so increase it to 24 and use snprintf()] En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: afs: aumenta el tamaño del búfer en afs_update_volume_status() La longitud má... • https://git.kernel.org/stable/c/d2ddc776a4581d900fc3bdc7803b403daae64d88 •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-26735 – ipv6: sr: fix possible use-after-free and null-ptr-deref
https://notcve.org/view.php?id=CVE-2024-26735
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: fix possible use-after-free and null-ptr-deref The pernet operations structure for the subsystem must be registered before registering the generic netlink family. En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: ipv6:sr: corrige posible use-after-free y null-ptr-deref La estructura de operaciones pernet para el subsystem debe registrarse antes de registrar la familia netlink genérica. A use-after-free flaw was fou... • https://git.kernel.org/stable/c/915d7e5e5930b4f01d0971d93b9b25ed17d221aa • CWE-416: Use After Free CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-26734 – devlink: fix possible use-after-free and memory leaks in devlink_init()
https://notcve.org/view.php?id=CVE-2024-26734
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: devlink: fix possible use-after-free and memory leaks in devlink_init() The pernet operations structure for the subsystem must be registered before registering the generic netlink family. Make an unregister in case of unsuccessful registration. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: devlink: corrige posibles pérdidas de memoria y use-after-free en devlink_init() La estructura de operaciones pernet para el subSYST... • https://git.kernel.org/stable/c/687125b5799cd5120437fa455cfccbe8537916ff •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-26733 – arp: Prevent overflow in arp_req_get().
https://notcve.org/view.php?id=CVE-2024-26733
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: arp: Prevent overflow in arp_req_get(). syzkaller reported an overflown write in arp_req_get(). [0] When ioctl(SIOCGARP) is issued, arp_req_get() looks up an neighbour entry and copies neigh->ha to struct arpreq.arp_ha.sa_data. The arp_ha here is struct sockaddr, not struct sockaddr_storage, so the sa_data buffer is just 14 bytes. In the splat below, 2 bytes are overflown to the next int field, arp_flags. We initialise the field just after ... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 • CWE-122: Heap-based Buffer Overflow •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2024-26731 – bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
https://notcve.org/view.php?id=CVE-2024-26731
03 Apr 2024 — In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready() syzbot reported the following NULL pointer dereference issue [1]: BUG: kernel NULL pointer dereference, address: 0000000000000000 [...] RIP: 0010:0x0 [...] Call Trace: