CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2022-48945 – media: vivid: fix compose size exceed boundary
https://notcve.org/view.php?id=CVE-2022-48945
In the Linux kernel, the following vulnerability has been resolved: media: vivid: fix compose size exceed boundary syzkaller found a bug: BUG: unable to handle page fault for address: ffffc9000a3b1000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0 Oops: 0002 [#1] PREEMPT SMP CPU: 0 PID: 23489 Comm: vivid-000-vid-c Not tainted 6.1.0-rc1+ #512 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: 0010:memcpy_erms+0x6/0x10 [...] Call Trace: <TASK> ? tpg_fill_plane_buffer+0x856/0x15b0 vivid_fillbuff+0x8ac/0x1110 vivid_thread_vid_cap_tick+0x361/0xc90 vivid_thread_vid_cap+0x21a/0x3a0 kthread+0x143/0x180 ret_from_fork+0x1f/0x30 </TASK> This is because we forget to check boundary after adjust compose->height int V4L2_SEL_TGT_CROP case. Add v4l2_rect_map_inside() to fix this problem for this case. • https://git.kernel.org/stable/c/ef834f7836ec0502f49f20bbc42f1240577a9c83 https://git.kernel.org/stable/c/8c0ee15d9a102c732d0745566d254040085d5663 https://git.kernel.org/stable/c/5edc3604151919da8da0fb092b71d7dce07d848a https://git.kernel.org/stable/c/9c7fba9503b826f0c061d136f8f0c9f953ed18b9 https://git.kernel.org/stable/c/54f259906039dbfe46c550011409fa16f72370f6 https://git.kernel.org/stable/c/f9d19f3a044ca651b0be52a4bf951ffe74259b9f https://git.kernel.org/stable/c/ab54081a2843aefb837812fac5488cc8f1696142 https://git.kernel.org/stable/c/ccb5392c4fea0e7d9f7ab35567e839d74 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-46801 – libfs: fix get_stashed_dentry()
https://notcve.org/view.php?id=CVE-2024-46801
In the Linux kernel, the following vulnerability has been resolved: libfs: fix get_stashed_dentry() get_stashed_dentry() tries to optimistically retrieve a stashed dentry from a provided location. It needs to ensure to hold rcu lock before it dereference the stashed location to prevent UAF issues. Use rcu_dereference() instead of READ_ONCE() it's effectively equivalent with some lockdep bells and whistles and it communicates clearly that this expects rcu protection. • https://git.kernel.org/stable/c/07fd7c329839cf0b8c7766883d830a1a0d12d1dd https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7 https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052e •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-46800 – sch/netem: fix use after free in netem_dequeue
https://notcve.org/view.php?id=CVE-2024-46800
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 dummy0 up tc qdisc add dev lo parent root handle 1: drr tc filter add dev lo parent 1: basic classid 1:1 tc class add dev lo classid 1:1 drr tc qdisc add dev lo parent 1:1 handle 2: netem tc qdisc add dev lo parent 2: handle 3: drr tc filter add dev lo parent 3: basic classid 3:1 action mirred egress redirect dev dummy0 tc class add dev lo classid 3:1 drr ping -c1 -W0.01 localhost # Trigger bug tc class del dev lo classid 1:1 tc class add dev lo classid 1:1 drr ping -c1 -W0.01 localhost # UaF • https://git.kernel.org/stable/c/50612537e9ab29693122fab20fc1eed235054ffe https://git.kernel.org/stable/c/f0bddb4de043399f16d1969dad5ee5b984a64e7b https://git.kernel.org/stable/c/295ad5afd9efc5f67b86c64fce28fb94e26dc4c9 https://git.kernel.org/stable/c/98c75d76187944296068d685dfd8a1e9fd8c4fdc https://git.kernel.org/stable/c/14f91ab8d391f249b845916820a56f42cf747241 https://git.kernel.org/stable/c/db2c235682913a63054e741fe4e19645fdf2d68e https://git.kernel.org/stable/c/dde33a9d0b80aae0c69594d1f462515d7ff1cb3d https://git.kernel.org/stable/c/32008ab989ddcff1a485fa2b4906234c2 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-46799 – net: ethernet: ti: am65-cpsw: Fix NULL dereference on XDP_TX
https://notcve.org/view.php?id=CVE-2024-46799
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 <ipv6-src> -a <ipv6-dst> eth0 -t 2 Transmitting on eth0 (ifindex 2) [ 241.135257] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000030 Fix this by using actual TX queues instead of max TX queues when picking the TX channel in am65_cpsw_ndo_xdp_xmit(). • https://git.kernel.org/stable/c/8acacc40f7337527ff84cd901ed2ef0a2b95b2b6 https://git.kernel.org/stable/c/2e7189d2b1de51fc2567676cd4f96c0fe0960b9f https://git.kernel.org/stable/c/0a50c35277f96481a5a6ed5faf347f282040c57d •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-46798 – ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object
https://notcve.org/view.php?id=CVE-2024-46798
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+0x1a8/0x270 [ 52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330 [ 52.047785] Call trace: [ 52.047787] dump_backtrace+0x0/0x3c0 [ 52.047794] show_stack+0x34/0x50 [ 52.047797] dump_stack_lvl+0x68/0x8c [ 52.047802] print_address_description.constprop.0+0x74/0x2c0 [ 52.047809] kasan_report+0x210/0x230 [ 52.047815] __asan_report_load1_noabort+0x3c/0x50 [ 52.047820] snd_pcm_suspend_all+0x1a8/0x270 [ 52.047824] snd_soc_suspend+0x19c/0x4e0 The snd_pcm_sync_stop() has a NULL check on 'substream->runtime' before making any access. So we need to always set 'substream->runtime' to NULL everytime we kfree() it. • https://git.kernel.org/stable/c/a72706ed8208ac3f72d1c3ebbc6509e368b0dcb0 https://git.kernel.org/stable/c/993b60c7f93fa1d8ff296b58f646a867e945ae89 https://git.kernel.org/stable/c/8ca21e7a27c66b95a4b215edc8e45e5d66679f9f https://git.kernel.org/stable/c/3033ed903b4f28b5e1ab66042084fbc2c48f8624 https://git.kernel.org/stable/c/fe5046ca91d631ec432eee3bdb1f1c49b09c8b5e https://git.kernel.org/stable/c/5d13afd021eb43868fe03cef6da34ad08831ad6d https://git.kernel.org/stable/c/6a14fad8be178df6c4589667efec1789a3307b4e https://git.kernel.org/stable/c/b4a90b543d9f62d3ac34ec1ab97fc5334 •