CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-50074 – parport: Proper fix for array out-of-bounds access
https://notcve.org/view.php?id=CVE-2024-50074
In the Linux kernel, the following vulnerability has been resolved: parport: Proper fix for array out-of-bounds access The recent fix for array out-of-bounds accesses replaced sprintf() calls blindly with snprintf(). However, since snprintf() returns the would-be-printed size, not the actually output size, the length calculation can still go over the given limit. Use scnprintf() instead of snprintf(), which returns the actually output letters, for addressing the potential out-of-bounds access properly. • https://git.kernel.org/stable/c/166a0bddcc27de41fe13f861c8348e8e53e988c8 https://git.kernel.org/stable/c/47b3dce100778001cd76f7e9188944b5cb27a76d https://git.kernel.org/stable/c/a44f88f7576bc1916d8d6293f5c62fbe7cbe03e0 https://git.kernel.org/stable/c/c719b393374d3763e64900ee19aaed767d5a08d6 https://git.kernel.org/stable/c/7f4da759092a1a6ce35fb085182d02de8cc4cc84 https://git.kernel.org/stable/c/b579ea3516c371ecf59d073772bc45dfd28c8a0e https://git.kernel.org/stable/c/ab11dac93d2d568d151b1918d7b84c2d02bacbd5 https://git.kernel.org/stable/c/7789a1d6792af410aa9b39a1eb237ed24 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-50073 – tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
https://notcve.org/view.php?id=CVE-2024-50073
In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: Fix use-after-free in gsm_cleanup_mux BUG: KASAN: slab-use-after-free in gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm] Read of size 8 at addr ffff88815fe99c00 by task poc/3379 CPU: 0 UID: 0 PID: 3379 Comm: poc Not tainted 6.11.0+ #56 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 Call Trace: <TASK> gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm] __pfx_gsm_cleanup_mux+0x10/0x10 drivers/tty/n_gsm.c:3124 [n_gsm] __pfx_sched_clock_cpu+0x10/0x10 kernel/sched/clock.c:389 update_load_avg+0x1c1/0x27b0 kernel/sched/fair.c:4500 __pfx_min_vruntime_cb_rotate+0x10/0x10 kernel/sched/fair.c:846 __rb_insert_augmented+0x492/0xbf0 lib/rbtree.c:161 gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm] _raw_spin_lock_irqsave+0x92/0xf0 arch/x86/include/asm/atomic.h:107 __pfx_gsmld_ioctl+0x10/0x10 drivers/tty/n_gsm.c:3822 [n_gsm] ktime_get+0x5e/0x140 kernel/time/timekeeping.c:195 ldsem_down_read+0x94/0x4e0 arch/x86/include/asm/atomic64_64.h:79 __pfx_ldsem_down_read+0x10/0x10 drivers/tty/tty_ldsem.c:338 __pfx_do_vfs_ioctl+0x10/0x10 fs/ioctl.c:805 tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818 Allocated by task 65: gsm_data_alloc.constprop.0+0x27/0x190 drivers/tty/n_gsm.c:926 [n_gsm] gsm_send+0x2c/0x580 drivers/tty/n_gsm.c:819 [n_gsm] gsm1_receive+0x547/0xad0 drivers/tty/n_gsm.c:3038 [n_gsm] gsmld_receive_buf+0x176/0x280 drivers/tty/n_gsm.c:3609 [n_gsm] tty_ldisc_receive_buf+0x101/0x1e0 drivers/tty/tty_buffer.c:391 tty_port_default_receive_buf+0x61/0xa0 drivers/tty/tty_port.c:39 flush_to_ldisc+0x1b0/0x750 drivers/tty/tty_buffer.c:445 process_scheduled_works+0x2b0/0x10d0 kernel/workqueue.c:3229 worker_thread+0x3dc/0x950 kernel/workqueue.c:3391 kthread+0x2a3/0x370 kernel/kthread.c:389 ret_from_fork+0x2d/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:257 Freed by task 3367: kfree+0x126/0x420 mm/slub.c:4580 gsm_cleanup_mux+0x36c/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm] gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm] tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818 [Analysis] gsm_msg on the tx_ctrl_list or tx_data_list of gsm_mux can be freed by multi threads through ioctl,which leads to the occurrence of uaf. Protect it by gsm tx lock. • https://git.kernel.org/stable/c/bf171b5e86e41de4c1cf32fb7aefa275c3d7de49 https://git.kernel.org/stable/c/c29f192e0d44cc1cbaf698fa1ff198f63556691a https://git.kernel.org/stable/c/0eec592c6a7460ba795d7de29f3dc95cb5422e62 https://git.kernel.org/stable/c/9462f4ca56e7d2430fdb6dcc8498244acbfc4489 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-50072 – x86/bugs: Use code segment selector for VERW operand
https://notcve.org/view.php?id=CVE-2024-50072
In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Use code segment selector for VERW operand Robert Gill reported below #GP in 32-bit mode when dosemu software was executing vm86() system call: general protection fault: 0000 [#1] PREEMPT SMP CPU: 4 PID: 4610 Comm: dosemu.bin Not tainted 6.6.21-gentoo-x86 #1 Hardware name: Dell Inc. PowerEdge 1950/0H723K, BIOS 2.7.0 10/30/2010 EIP: restore_all_switch_stack+0xbe/0xcf EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000 ESI: 00000000 EDI: 00000000 EBP: 00000000 ESP: ff8affdc DS: 0000 ES: 0000 FS: 0000 GS: 0033 SS: 0068 EFLAGS: 00010046 CR0: 80050033 CR2: 00c2101c CR3: 04b6d000 CR4: 000406d0 Call Trace: show_regs+0x70/0x78 die_addr+0x29/0x70 exc_general_protection+0x13c/0x348 exc_bounds+0x98/0x98 handle_exception+0x14d/0x14d exc_bounds+0x98/0x98 restore_all_switch_stack+0xbe/0xcf exc_bounds+0x98/0x98 restore_all_switch_stack+0xbe/0xcf This only happens in 32-bit mode when VERW based mitigations like MDS/RFDS are enabled. This is because segment registers with an arbitrary user value can result in #GP when executing VERW. Intel SDM vol. 2C documents the following behavior for VERW instruction: #GP(0) - If a memory operand effective address is outside the CS, DS, ES, FS, or GS segment limit. CLEAR_CPU_BUFFERS macro executes VERW instruction before returning to user space. Use %cs selector to reference VERW operand. • https://git.kernel.org/stable/c/50f021f0b985629accf10481a6e89af8b9700583 https://git.kernel.org/stable/c/d54de9f2a127090f2017184e8257795b487d5312 https://git.kernel.org/stable/c/2e3087505ddb8ba2d3d4c81306cca11e868fcdb9 https://git.kernel.org/stable/c/ca13d8cd8dac25558da4ee8df4dc70e8e7f9d762 https://git.kernel.org/stable/c/a0e2dab44d22b913b4c228c8b52b2a104434b0b3 https://git.kernel.org/stable/c/51eca9f1fd047b500137d021f882d93f03280118 https://git.kernel.org/stable/c/bfd1d223d80cb29a210caa1bd5e21f0816d58f02 https://git.kernel.org/stable/c/ada431c6c31a2c8c37991c46089af5caa •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-50071 – pinctrl: nuvoton: fix a double free in ma35_pinctrl_dt_node_to_map_func()
https://notcve.org/view.php?id=CVE-2024-50071
In the Linux kernel, the following vulnerability has been resolved: pinctrl: nuvoton: fix a double free in ma35_pinctrl_dt_node_to_map_func() 'new_map' is allocated using devm_* which takes care of freeing the allocated data on device removal, call to .dt_free_map = pinconf_generic_dt_free_map double frees the map as pinconf_generic_dt_free_map() calls pinctrl_utils_free_map(). Fix this by using kcalloc() instead of auto-managed devm_kcalloc(). • https://git.kernel.org/stable/c/f805e356313bbcafef48808c14eb9ce7f4ff2560 https://git.kernel.org/stable/c/6441d9c3d71b59c8fd27d4e381c7471a32ac1a68 https://git.kernel.org/stable/c/3fd976afe9743110f20a23f93b7ff9693f2be4bf •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-50070 – pinctrl: stm32: check devm_kasprintf() returned value
https://notcve.org/view.php?id=CVE-2024-50070
In the Linux kernel, the following vulnerability has been resolved: pinctrl: stm32: check devm_kasprintf() returned value devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fix this lack and check the returned value. Found by code review. • https://git.kernel.org/stable/c/32c170ff15b044579b1f8b8cdabf543406dde9da https://git.kernel.org/stable/c/3b36bb1fca2b87f6292ca2a8593f297c5e9fab41 https://git.kernel.org/stable/c/1f266957ae1207b0717c2d69096bc70654ae9fcb https://git.kernel.org/stable/c/b0f0e3f0552a566def55c844b0d44250c58e4df6 •