CVE-2022-49889 ring-buffer: Check for NULL cpu_buffer in ring_buffer_wake_waiters()

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Check for NULL cpubuffer in ringbufferwakewaiters On some machines the number of listed CPUs may be bigger than the actual CPUs that exist. The tracing subsystem allocates a percpu directory with access to the per CP...

CVE-2022-49889 ring-buffer: Check for NULL cpu_buffer in ring_buffer_wake_waiters()

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Check for NULL cpubuffer in ringbufferwakewaiters On some machines the number of listed CPUs may be bigger than the actual CPUs that exist. The tracing subsystem allocates a percpu directory with access to the per CP...

CVE-2022-49886

The CVE-2022-49886 issue affects the Linux kernel related to x86/tdx memory handling. The vulnerability stems from how private memory (TDX private memory, including kernel stacks/text) may trigger a virtualization exception (#VE) and the difficulty of handling such exceptions. The root cause desc...

CVE-2022-49885

CVE-2022-49885 is a Linux kernel vulnerability in ACPI APEI where ghes_estatus_pool_init() can overflow due to signed integer math during len calculation (len += (num_ghes * GHES_ESOURCE_PREALLOC_MAX_SIZE)). The root cause is using int for num_ghes, which can overflow and cause subsequent vmalloc...

CVE-2022-49884

CVE-2022-49884 relates to Linux kernel KVM: gfn_to_pfn_cache lock initialization, which was moved to a dedicated helper during VM/vCPU creation to address race conditions that could occur if kvm_gfn_to_pfn_cache_init() re-initializes locks. The description includes a race scenario involving kvm_x...

CVE-2022-49882

CVE-2022-49882 concerns the Linux kernel KVM gfn_to_pfn_cache handling. The issue arises when the cache is inactive but refreshed without verifying the active flag, potentially leaving a valid but inactive cache and enabling use-after-free scenarios (e.g., dereferencing NULL kernel pointers or mi...

CVE-2022-49881

CVE-2022-49881 – Linux kernel wifi cfg80211 memory leak in query_regdb_file() Root cause: in query_regdb_file(), the alpha2 data is duplicated with kmemdup() and freed in regdb_fw_cb(), but request_firmware_nowait() may fail and skip regdb_fw_cb(), leaking memory. The connected advisories confirm...

CVE-2022-49879

CVE-2022-49879 affects the Linux kernel ext4 code. A corrupted directory entry where rec_len is invalid (not a multiple of 4) can cause a kernel BUG() in ext4_rec_len_to_disk() called from make_indexed_dir(). The fix adds a validation step via ext4_check_dir_entry(), returning -EFSCORRUPTED for i...

CVE-2022-49878

Summary: CVE-2022-49878 is a Linux kernel vulnerability in the bpf verifier’s array reallocation. When realloc_array() errors (krealloc() returns NULL), callers previously set their pointers to NULL, but krealloc() leaves the original allocation untouched, causing a memory leak. The description i...

CVE-2022-49878 bpf, verifier: Fix memory leak in array reallocation for stack state

In the Linux kernel, the following vulnerability has been resolved: bpf, verifier: Fix memory leak in array reallocation for stack state If an error NULL is returned by krealloc, callers of reallocarray were setting their allocation pointers to NULL, but on error krealloc does not touch the...

CVE-2022-49877 bpf, sockmap: Fix the sk->sk_forward_alloc warning of sk_stream_kill_queues

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix the sk-skforwardalloc warning of skstreamkillqueues When running testsockmap selftests, the following warning appears: WARNING: CPU: 2 PID: 197 at net/core/stream.c:205 skstreamkillqueues+0xd3/0xf0 Call Trace:...

CVE-2022-49874 HID: hyperv: fix possible memory leak in mousevsc_probe()

In the Linux kernel, the following vulnerability has been resolved: HID: hyperv: fix possible memory leak in mousevscprobe If hidadddevice returns error, it should call hiddestroydevice to free hiddev which is allocated in hidallocatedevice...

CVE-2022-49870 capabilities: fix undefined behavior in bit shift for CAP_TO_MASK

In the Linux kernel, the following vulnerability has been resolved: capabilities: fix undefined behavior in bit shift for CAPTOMASK Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in...

CVE-2022-49871 net: tun: Fix memory leaks of napi_get_frags

In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix memory leaks of napigetfrags kmemleak reports after running testprogs: unreferenced object 0xffff8881b1672dc0 size 232: comm "testprogs", pid 394388, jiffies 4354712116 age 841.975s hex dump first 32 bytes: e0 84 d7...

CVE-2022-49870

In CVE-2022-49870, the Linux kernel fixes undefined behavior in the CAP_TO_MASK bit-shift operation. The issue arises when shifting a signed 32-bit value by 31 bits, triggering UBSAN warnings (shift-out-of-bounds) reported in security/commoncap.c. The vulnerability stems from shifting a value tha...

CVE-2022-49869

CVE-2022-49869 (bnxt_en): In the Linux kernel bnxt_hwrm_set_coal() may crash during error recovery because rtnl_lock isn’t held for the entire sequence, allowing freed datastructures. The fix uses BNXT_STATE_OPEN rather than netif_running() to ensure the device is fully operational before reconfi...

CVE-2022-49867 net: wwan: iosm: fix memory leak in ipc_wwan_dellink

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: fix memory leak in ipcwwandellink IOSM driver registers network device without setting the needsfreenetdev flag, and does NOT call freenetdev when unregisters network device, which causes a memory leak. This patc...

CVE-2022-49868 phy: ralink: mt7621-pci: add sentinel to quirks table

In the Linux kernel, the following vulnerability has been resolved: phy: ralink: mt7621-pci: add sentinel to quirks table With mt7621 socdevattr fixed to register the soc as a device, kernel will experience an oops in socdevicematchattr This quirk test was introduced in the staging driver in comm...

CVE-2022-49865

The CVE-2022-49865 entry corresponds to a Linux kernel fix for an infoleak in IPv6 addrlabel. Root cause: when copying a struct ifaddrlblmsg to the network, the __ifal_reserved field was left uninitialized, enabling a 1-byte information leak. The patch initializes the reserved field to prevent le...

CVE-2022-49862 tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header

In the Linux kernel, the following vulnerability has been resolved: tipc: fix the msg-req tlv len check in tipcnlcompatnametabledumpheader This is a follow-up for commit 974cb0e3e7c9 "tipc: fix uninit-value in tipcnlcompatnametabledump" where it should have type casted sizeof.. to int to work whe...