CVSS: 4.7EPSS: 0%CPEs: 7EXPL: 0CVE-2021-47248 – udp: fix race between close() and udp_abort()
https://notcve.org/view.php?id=CVE-2021-47248
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: udp: fix race between close() and udp_abort() Kaustubh reported and diagnosed a panic in udp_lib_lookup(). The root cause is udp_abort() racing with close(). Both racing functions acquire the socket lock, but udp{v6}_destroy_sock() release it before performing destructive actions. We can't easily extend the socket lock scope to avoid the race, instead use the SOCK_DEAD flag to prevent udp_abort from doing any action when the critical race h... • https://git.kernel.org/stable/c/5d77dca82839ef016a93ad7acd7058b14d967752 •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47247 – net/mlx5e: Fix use-after-free of encap entry in neigh update handler
https://notcve.org/view.php?id=CVE-2021-47247
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix use-after-free of encap entry in neigh update handler Function mlx5e_rep_neigh_update() wasn't updated to accommodate rtnl lock removal from TC filter update path and properly handle concurrent encap entry insertion/deletion which can lead to following use-after-free: [23827.464923] ================================================================== [23827.469446] BUG: KASAN: use-after-free in mlx5e_encap_take+0x72/0x140 [mlx5... • https://git.kernel.org/stable/c/2a1f1768fa17805ca2e937e2e034a7c3433d3bdc •
CVSS: 3.3EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47246 – net/mlx5e: Fix page reclaim for dead peer hairpin
https://notcve.org/view.php?id=CVE-2021-47246
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix page reclaim for dead peer hairpin When adding a hairpin flow, a firmware-side send queue is created for the peer net device, which claims some host memory pages for its internal ring buffer. If the peer net device is removed/unbound before the hairpin flow is deleted, then the send queue is not destroyed which leads to a stack trace on pci device remove: [ 748.005230] mlx5_core 0000:08:00.2: wait_func:1094:(pid 12985): MANAG... • https://git.kernel.org/stable/c/4d8fcf216c90bc25e34ae2200aa8985ee3158898 •
CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47245 – netfilter: synproxy: Fix out of bounds when parsing TCP options
https://notcve.org/view.php?id=CVE-2021-47245
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: Fix out of bounds when parsing TCP options The TCP option parser in synproxy (synproxy_parse_options) could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if the opcode is neither TCPOPT_EOL nor TCPOPT_NOP, it reads one more byte, which exceeds the length of 1. This fix is inspired by commit 9609dad263f8 ("ipv4: tcp_input: fix stack out of boun... • https://git.kernel.org/stable/c/48b1de4c110a7afa4b85862f6c75af817db26fad •
CVSS: 7.7EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47244 – mptcp: Fix out of bounds when parsing TCP options
https://notcve.org/view.php?id=CVE-2021-47244
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp (mptcp_get_options) could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if the opcode is neither TCPOPT_EOL nor TCPOPT_NOP, it reads one more byte, which exceeds the length of 1. This fix is inspired by commit 9609dad263f8 ("ipv4: tcp_input: fix stack out of bounds when parsing TCP op... • https://git.kernel.org/stable/c/cec37a6e41aae7bf3df9a3da783380a4d9325fd8 •
CVSS: 7.1EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47243 – sch_cake: Fix out of bounds when parsing TCP options and header
https://notcve.org/view.php?id=CVE-2021-47243
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: sch_cake: Fix out of bounds when parsing TCP options and header The TCP option parser in cake qdisc (cake_get_tcpopt and cake_tcph_may_drop) could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if the opcode is neither TCPOPT_EOL nor TCPOPT_NOP, it reads one more byte, which exceeds the length of 1. This fix is inspired by commit 9609dad263f8 ("ipv4: tcp_input: fix... • https://git.kernel.org/stable/c/8b7138814f29933898ecd31dfc83e35a30ee69f5 •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47242 – mptcp: fix soft lookup in subflow_error_report()
https://notcve.org/view.php?id=CVE-2021-47242
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lookup in subflow_error_report() Maxim reported a soft lookup in subflow_error_report(): watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0] RIP: 0010:native_queued_spin_lock_slowpath RSP: 0018:ffffa859c0003bc0 EFLAGS: 00000202 RAX: 0000000000000101 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff9195c2772d88 RSI: 0000000000000000 RDI: ffff9195c2772d88 RBP: ffff9195c2772d00 R08: 00000000000067b0 R09: c6e31da... • https://git.kernel.org/stable/c/15cc10453398c22f78f6c2b897119ecce5e5dd89 • CWE-667: Improper Locking •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47241 – ethtool: strset: fix message length calculation
https://notcve.org/view.php?id=CVE-2021-47241
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ethtool: strset: fix message length calculation Outer nest for ETHTOOL_A_STRSET_STRINGSETS is not accounted for. This may result in ETHTOOL_MSG_STRSET_GET producing a warning like: calculated message payload length (684) not sufficient WARNING: CPU: 0 PID: 30967 at net/ethtool/netlink.c:369 ethnl_default_doit+0x87a/0xa20 and a splat. As usually with such warnings three conditions must be met for the warning to trigger: - there must be no sk... • https://git.kernel.org/stable/c/71921690f9745fef60a2bad425f30adf8cdc9da0 • CWE-266: Incorrect Privilege Assignment •
CVSS: 7.1EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47240 – net: qrtr: fix OOB Read in qrtr_endpoint_post
https://notcve.org/view.php?id=CVE-2021-47240
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds Read in qrtr_endpoint_post. The problem was in wrong _size_ type: if (len != ALIGN(size, 4) + hdrlen) goto err; If size from qrtr_hdr is 4294967293 (0xfffffffd), the result of ALIGN(size, 4) will be 0. In case of len == hdrlen and size == 4294967293 in header this check won't fail and skb_put_data(skb, data + hdrlen, size); will read out of bound from data, whi... • https://git.kernel.org/stable/c/194ccc88297ae78d0803adad83c6dcc369787c9e •
CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0CVE-2021-47239 – net: usb: fix possible use-after-free in smsc75xx_bind
https://notcve.org/view.php?id=CVE-2021-47239
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xx_bind The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0]. This patch calls cancel_work_sync to cancel the scheduled work and set the da... • https://git.kernel.org/stable/c/200dbfcad8011e50c3cec269ed7b980836eeb1fa •