CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2025-21636 – sctp: sysctl: plpmtud_probe_interval: avoid using current->nsproxy
https://notcve.org/view.php?id=CVE-2025-21636
19 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: plpmtud_probe_interval: avoid using current->nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the reader's/writer's netns vs only from the opener's netns. - current->nsproxy can be NULL in some cases, resulting in an 'Oops' (null-ptr-deref), e.g. when the current task is exiting, as spotted by syzbot [1... • https://git.kernel.org/stable/c/d1e462a7a5f359cbb9a0e8fbfafcfb6657034105 •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2025-21635 – rds: sysctl: rds_tcp_{rcv,snd}buf: avoid using current->nsproxy
https://notcve.org/view.php?id=CVE-2025-21635
19 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: rds: sysctl: rds_tcp_{rcv,snd}buf: avoid using current->nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the reader's/writer's netns vs only from the opener's netns. - current->nsproxy can be NULL in some cases, resulting in an 'Oops' (null-ptr-deref), e.g. when the current task is exiting, as spotted by syzbot [1] u... • https://git.kernel.org/stable/c/c6a58ffed53612be86b758df1cdb0b0f4305e9cb •
CVSS: 8.5EPSS: 0%CPEs: 2EXPL: 0CVE-2025-21634 – cgroup/cpuset: remove kernfs active break
https://notcve.org/view.php?id=CVE-2025-21634
19 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: remove kernfs active break A warning was found: WARNING: CPU: 10 PID: 3486953 at fs/kernfs/file.c:828 CPU: 10 PID: 3486953 Comm: rmdir Kdump: loaded Tainted: G RIP: 0010:kernfs_should_drain_open_files+0x1a1/0x1b0 RSP: 0018:ffff8881107ef9e0 EFLAGS: 00010202 RAX: 0000000080000002 RBX: ffff888154738c00 RCX: dffffc0000000000 RDX: 0000000000000007 RSI: 0000000000000004 RDI: ffff888154738c04 RBP: ffff888154738c04 R08: ffffffffaf27f... • https://git.kernel.org/stable/c/76bb5ab8f6e3e7bebdcefec4146ff305e7d0b465 •
CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 0CVE-2025-21633 – io_uring/sqpoll: zero sqd->thread on tctx errors
https://notcve.org/view.php?id=CVE-2025-21633
19 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: io_uring/sqpoll: zero sqd->thread on tctx errors Syzkeller reports: BUG: KASAN: slab-use-after-free in thread_group_cputime+0x409/0x700 kernel/sched/cputime.c:341 Read of size 8 at addr ffff88803578c510 by task syz.2.3223/27552 Call Trace:
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2025-21632 – x86/fpu: Ensure shadow stack is active before "getting" registers
https://notcve.org/view.php?id=CVE-2025-21632
19 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Ensure shadow stack is active before "getting" registers The x86 shadow stack support has its own set of registers. Those registers are XSAVE-managed, but they are "supervisor state components" which means that userspace can not touch them with XSAVE/XRSTOR. It also means that they are not accessible from the existing ptrace ABI for XSAVE state. Thus, there is a new ptrace get/set interface for it. The regset code that ptrace uses ... • https://git.kernel.org/stable/c/2fab02b25ae7cf5f714ab456b03d9a3fe5ae98c9 •
CVSS: 7.3EPSS: 0%CPEs: 7EXPL: 0CVE-2025-21631 – block, bfq: fix waker_bfqq UAF after bfq_split_bfqq()
https://notcve.org/view.php?id=CVE-2025-21631
19 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix waker_bfqq UAF after bfq_split_bfqq() Our syzkaller report a following UAF for v6.6: BUG: KASAN: slab-use-after-free in bfq_init_rq+0x175d/0x17a0 block/bfq-iosched.c:6958 Read of size 8 at addr ffff8881b57147d8 by task fsstress/232726 CPU: 2 PID: 232726 Comm: fsstress Not tainted 6.6.0-g3629d1885222 #39 Call Trace:
CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 0CVE-2024-57857 – RDMA/siw: Remove direct link to net_device
https://notcve.org/view.php?id=CVE-2024-57857
15 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Remove direct link to net_device Do not manage a per device direct link to net_device. Rely on associated ib_devices net_device management, not doubling the effort locally. A badly managed local link to net_device was causing a 'KASAN: slab-use-after-free' exception during siw_query_port() call. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/siw: eliminar el enlace directo a net_device No administrar un en... • https://git.kernel.org/stable/c/bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521 •
CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 0CVE-2024-57844 – drm/xe: Fix fault on fd close after unbind
https://notcve.org/view.php?id=CVE-2024-57844
15 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix fault on fd close after unbind If userspace holds an fd open, unbinds the device and then closes it, the driver shouldn't try to access the hardware. Protect it by using drm_dev_enter()/drm_dev_exit(). This fixes the following page fault: <6> [IGT] xe_wedged: exiting, ret=98 <1> BUG: unable to handle page fault for address: ffffc901bc5e508c <1> #PF: supervisor read access in kernel mode <1> #PF: error_code(0x0000) - not-present ... • https://git.kernel.org/stable/c/514447a1219021298329ce586536598c3b4b2dc0 •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-57841 – net: fix memory leak in tcp_conn_request()
https://notcve.org/view.php?id=CVE-2024-57841
15 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: net: fix memory leak in tcp_conn_request() If inet_csk_reqsk_queue_hash_add() return false, tcp_conn_request() will return without free the dst memory, which allocated in af_ops->route_req. Here is the kmemleak stack: unreferenced object 0xffff8881198631c0 (size 240): comm "softirq", pid 0, jiffies 4299266571 (age 1802.392s) hex dump (first 32 bytes): 00 10 9b 03 81 88 ff ff 80 98 da bc ff ff ff ff ................ 81 55 18 bb ff ff ff ff 0... • https://git.kernel.org/stable/c/527bec1f56ac7a2fceb8eb77eb0fc2678ecba394 •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-57802 – netrom: check buffer length before accessing it
https://notcve.org/view.php?id=CVE-2024-57802
15 Jan 2025 — In the Linux kernel, the following vulnerability has been resolved: netrom: check buffer length before accessing it Syzkaller reports an uninit value read from ax25cmp when sending raw message through ieee802154 implementation. ===================================================== BUG: KMSAN: uninit-value in ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119 ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119 nr_dev_get+0x20e/0x450 net/netrom/nr_route.c:601 nr_route_frame+0x1a2/0xfc0 net/netrom/nr_route.c:774 nr_xmit+0x... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •