CVE-2024-46800 – sch/netem: fix use after free in netem_dequeue
https://notcve.org/view.php?id=CVE-2024-46800
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: sch/netem: fix use after free in netem_dequeue If netem_dequeue() enqueues packet to inner qdisc and that qdisc returns __NET_XMIT_STOLEN. The packet is dropped but qdisc_tree_reduce_backlog() is not called to update the parent's q.qlen, leading to the similar use-after-free as Commit e04991a48dbaf382 ("netem: fix return value if duplicate enqueue fails") Commands to trigger KASAN UaF: ip link add type dummy ip link set lo up ip link set du... • https://git.kernel.org/stable/c/50612537e9ab29693122fab20fc1eed235054ffe •
CVE-2024-46799 – net: ethernet: ti: am65-cpsw: Fix NULL dereference on XDP_TX
https://notcve.org/view.php?id=CVE-2024-46799
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: Fix NULL dereference on XDP_TX If number of TX queues are set to 1 we get a NULL pointer dereference during XDP_TX. ~# ethtool -L eth0 tx 1 ~# ./xdp-trafficgen udp -A
CVE-2024-46798 – ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object
https://notcve.org/view.php?id=CVE-2024-46798
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object When using kernel with the following extra config, - CONFIG_KASAN=y - CONFIG_KASAN_GENERIC=y - CONFIG_KASAN_INLINE=y - CONFIG_KASAN_VMALLOC=y - CONFIG_FRAME_WARN=4096 kernel detects that snd_pcm_suspend_all() access a freed 'snd_soc_pcm_runtime' object when the system is suspended, which leads to a use-after-free bug: [ 52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x27... • https://git.kernel.org/stable/c/a72706ed8208ac3f72d1c3ebbc6509e368b0dcb0 •
CVE-2024-46797 – powerpc/qspinlock: Fix deadlock in MCS queue
https://notcve.org/view.php?id=CVE-2024-46797
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: powerpc/qspinlock: Fix deadlock in MCS queue If an interrupt occurs in queued_spin_lock_slowpath() after we increment qnodesp->count and before node->lock is initialized, another CPU might see stale lock values in get_tail_qnode(). If the stale lock value happens to match the lock on that CPU, then we write to the "next" pointer of the wrong qnode. This causes a deadlock as the former CPU, once it becomes the head of the MCS queue, will spi... • https://git.kernel.org/stable/c/84990b169557428c318df87b7836cd15f65b62dc •
CVE-2024-46796 – smb: client: fix double put of @cfile in smb2_set_path_size()
https://notcve.org/view.php?id=CVE-2024-46796
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double put of @cfile in smb2_set_path_size() If smb2_compound_op() is called with a valid @cfile and returned -EINVAL, we need to call cifs_get_writable_path() before retrying it as the reference of @cfile was already dropped by previous call. This fixes the following KASAN splat when running fstests generic/013 against Windows Server 2022: CIFS: Attempting to mount //w22-fs0/scratch run fstests generic/013 at 2024-09-02 19... • https://git.kernel.org/stable/c/1e60bc0e954389af82f1d9a85f13a63f6572350f •
CVE-2024-46795 – ksmbd: unset the binding mark of a reused connection
https://notcve.org/view.php?id=CVE-2024-46795
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: ksmbd: unset the binding mark of a reused connection Steve French reported null pointer dereference error from sha256 lib. cifs.ko can send session setup requests on reused connection. If reused connection is used for binding session, conn->binding can still remain true and generate_preauth_hash() will not set sess->Preauth_HashValue and it will be NULL. It is used as a material to create an encryption key in ksmbd_gen_smb311_encryptionkey.... • https://git.kernel.org/stable/c/f5a544e3bab78142207e0242d22442db85ba1eff •
CVE-2024-46794 – x86/tdx: Fix data leak in mmio_read()
https://notcve.org/view.php?id=CVE-2024-46794
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix data leak in mmio_read() The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmio_read() unintentionally exposes the value of an initialized variable (val) on the stack to the VMM. This variable is only needed as an output value. It did not need to be passed to the VMM in the first place. Do not send the original value of *val to the VMM. [ dhansen: clarify what 'val' i... • https://git.kernel.org/stable/c/31d58c4e557d46fa7f8557714250fb6f89c941ae •
CVE-2024-46793 – ASoC: Intel: Boards: Fix NULL pointer deref in BYT/CHT boards harder
https://notcve.org/view.php?id=CVE-2024-46793
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: Boards: Fix NULL pointer deref in BYT/CHT boards harder Since commit 13f58267cda3 ("ASoC: soc.h: don't create dummy Component via COMP_DUMMY()") dummy codecs declared like this: SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY())); expand to: static struct snd_soc_dai_link_component dummy[] = { }; Which means that dummy is a zero sized array and thus dais[i].codecs should not be dereferenced *at all* since it points to ... • https://git.kernel.org/stable/c/7d99a70b65951108d82e1618c67abe69c3ed7720 •
CVE-2024-46792 – riscv: misaligned: Restrict user access to kernel memory
https://notcve.org/view.php?id=CVE-2024-46792
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: riscv: misaligned: Restrict user access to kernel memory raw_copy_{to,from}_user() do not call access_ok(), so this code allowed userspace to access any virtual memory address. In the Linux kernel, the following vulnerability has been resolved: riscv: misaligned: Restrict user access to kernel memory raw_copy_{to,from}_user() do not call access_ok(), so this code allowed userspace to access any virtual memory address. Ubuntu Security Notice... • https://git.kernel.org/stable/c/7c83232161f609bbc452a1255f823f41afc411dd •
CVE-2024-46791 – can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open
https://notcve.org/view.php?id=CVE-2024-46791
18 Sep 2024 — In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open The mcp251x_hw_wake() function is called with the mpc_lock mutex held and disables the interrupt handler so that no interrupts can be processed while waking the device. If an interrupt has already occurred then waiting for the interrupt handler to complete will deadlock because it will be trying to acquire the same mutex. CPU0 CPU1 ---- ---- mcp251x_open() mutex_lock(&pri... • https://git.kernel.org/stable/c/8ce8c0abcba314e1fe954a1840f6568bf5aef2ef •