CVE-2022-49916

CVE-2022-49916 covers a NULL pointer dereference in the Linux kernel’s Rose protocol path (rose_send_frame). The issue surfaces when rose_loopback_neigh's neigh->dev is NULL, causing access to neigh->dev->dev_addr and triggering a NULL dereference in rose_send_frame (rose_link.c: rose_se...

CVE-2022-49916 rose: Fix NULL pointer dereference in rose_send_frame()

In the Linux kernel, the following vulnerability has been resolved: rose: Fix NULL pointer dereference in rosesendframe The syzkaller reported an issue: KASAN: null-ptr-deref in range 0x0000000000000380-0x0000000000000387 CPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted...

CVE-2022-49914 btrfs: fix inode list leak during backref walking at resolve_indirect_refs()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix inode list leak during backref walking at resolveindirectrefs During backref walking, at resolveindirectrefs, if we get an error we jump to the 'out' label and call ulistfree on the 'parents' ulist, which frees all the...

CVE-2022-49911 netfilter: ipset: enforce documented limit to prevent allocating huge memory

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: enforce documented limit to prevent allocating huge memory Daniel Xu reported that the hash:net,iface type of the ipset subsystem does not limit adding the same network with different interfaces to a set, which...

CVE-2022-49909 Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix use-after-free in l2capconndel When l2caprecvframe is invoked to receive data, and the cid is L2CAPCIDA2MP, if the channel does not exist, it will create a channel. However, after a channel is created, the...

CVE-2022-49908 Bluetooth: L2CAP: Fix memory leak in vhci_write

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix memory leak in vhciwrite Syzkaller reports a memory leak as follows: ==================================== BUG: memory leak unreferenced object 0xffff88810d81ac00 size 240: ... hex dump first 32 bytes: 00 00 ...

CVE-2022-49906

The CVE-2022-49906 issue affects the Linux kernel ibmvnic driver: a path in the reset handling could leak 32 bytes by not freeing the rwi structure when the last rwi in the list is processed. A fix releases the rwi memory on reset success (kernel patch 4f408e1fa6e1 and related commits). Connected...

CVE-2022-49906 ibmvnic: Free rwi on reset success

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Free rwi on reset success Free the rwi structure in the event that the last rwi in the list processed successfully. The logic in commit 4f408e1fa6e1 "ibmvnic: retry reset if there are no other resets" introduces an issue...

CVE-2022-49905

In the Linux kernel, the net/smc subsystem has a vulnerability disclosed as CVE-2022-49905 due to a missing error path in smc_init(). register_pernet_subsys(&smc_net_stat_ops) is called without proper rollback handling; if it fails, the registration of &smc_net_ops may not be reverted, and if smc...

CVE-2022-49902

CVE-2022-49902 concerns a Linux kernel memory-leak in rq_wb on add_disk failure. kmemleak reported 3 memory-leak instances; the leak stems from memory allocated in wbt_enable_default() not being freed in device_add_disk()’s error path. Normally, del_gendisk()/rq_qos_exit() would free rq_wb memory...

CVE-2022-49900 i2c: piix4: Fix adapter not be removed in piix4_remove()

In the Linux kernel, the following vulnerability has been resolved: i2c: piix4: Fix adapter not be removed in piix4remove In piix4probe, the piix4 adapter will be registered in: piix4probe piix4addadapterssb800 / piix4addadapter i2caddadapter Based on the probed device type, piix4addadapterssb800...

CVE-2022-49899 fscrypt: stop using keyrings subsystem for fscrypt_master_key

In the Linux kernel, the following vulnerability has been resolved: fscrypt: stop using keyrings subsystem for fscryptmasterkey The approach of fs/crypto/ internally managing the fscryptmasterkey structs as the payloads of "struct key" objects contained in a "struct key" keyring has outlived its...

CVE-2022-49899

The CVE-2022-49899 issue concerns the Linux kernel fscrypt master keys: the fs/crypto layer previously stored fscrypt_master_key objects inside the keyrings subsystem, risking use-after-free scenarios and deadlocks. The fix removes dependency on keyrings, storing master keys in a regular kernel d...

CVE-2022-49898 btrfs: fix tree mod log mishandling of reallocated nodes

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix tree mod log mishandling of reallocated nodes We have been seeing the following panic in production kernel BUG at fs/btrfs/tree-mod-log.c:677! invalid opcode: 0000 1 SMP RIP: 0010:treemodlogrewind+0x1b4/0x200 RSP:...

CVE-2022-49898

CVE-2022-49898 concerns the Linux kernel’s BTRFS tree modification log handling. Connected sources describe a reproducible kernel panic: during replay of tree modification log entries, a REMOVE_WHILE_FREEING entry can be processed with an insufficiently checked slot count, triggering a BUG_ON whe...

CVE-2022-49895

CVE-2022-49895 concerns the Linux kernel fix for a NULL pointer dereference in the cxl/region path. When an intermediate port’s decoders are exhausted and a new region is added in its hierarchical path, cxl_port_attach_region() may fail to find a port decoder and fall through to cleanup. During t...

CVE-2022-49895 cxl/region: Fix decoder allocation crash

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix decoder allocation crash When an intermediate port's decoders have been exhausted by existing regions, and creating a new region with the port in question in it's hierarchical path is attempted, cxlportattachregio...

CVE-2022-49892 ftrace: Fix use-after-free for dynamic ftrace_ops

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix use-after-free for dynamic ftraceops KASAN reported a use-after-free with ftrace ops 1. It was found from vmcore that perf had registered two ops with the same content successively, both dynamic. After unregistering t...

CVE-2022-49891

CVE-2022-49891 concerns a Linux kernel memory-leak in tracing/kprobe handling. The root cause is that test_gen_kprobe_cmd() frees buf only on the fail path, causing a leak when no failure occurs; the patch moves kfree(buf) from the fail path to the common path, and applies the same fix to test_ge...

CVE-2022-49890 capabilities: fix potential memleak on error path from vfs_getxattr_alloc()

In the Linux kernel, the following vulnerability has been resolved: capabilities: fix potential memleak on error path from vfsgetxattralloc In capinodegetsecurity, we will use vfsgetxattralloc to complete the memory allocation of tmpbuf, if we have completed the memory allocation of tmpbuf, but...