CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47293 – net/sched: act_skbmod: Skip non-Ethernet packets
https://notcve.org/view.php?id=CVE-2021-47293
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net/sched: act_skbmod: Skip non-Ethernet packets Currently tcf_skbmod_act() assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip link set up vcan0 $ tc qdisc add dev vcan0 root handle 1: htb $ tc filter add dev vcan0 parent 1: protocol ip prio 10 \ matchall action skbmod swap mac Doing the above silently corrupts all the packets. Do not p... • https://git.kernel.org/stable/c/86da71b57383d40993cb90baafb3735cffe5d800 • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47291 – ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
https://notcve.org/view.php?id=CVE-2021-47291
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions While running the self-tests on a KASAN enabled kernel, I observed a slab-out-of-bounds splat very similar to the one reported in commit 821bbf79fe46 ("ipv6: Fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions"). We additionally need to take care of fib6_metrics initialization failure when the caller provides an nh. The fix is similar, explicitly free the route inst... • https://git.kernel.org/stable/c/f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47289 – ACPI: fix NULL pointer dereference
https://notcve.org/view.php?id=CVE-2021-47289
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ACPI: fix NULL pointer dereference Commit 71f642833284 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer. En el kernel de... • https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e • CWE-476: NULL Pointer Dereference •
CVSS: 4.4EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47288 – media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()
https://notcve.org/view.php?id=CVE-2021-47288
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf() Fix an 11-year old bug in ngene_command_config_free_buf() while addressing the following warnings caught with -Warray-bounds: arch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds] arch/x86/include/asm/string_3... • https://git.kernel.org/stable/c/dae52d009fc950b5c209260d50fcc000f5becd3c •
CVSS: 6.2EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47286 – bus: mhi: core: Validate channel ID when processing command completions
https://notcve.org/view.php?id=CVE-2021-47286
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: bus: mhi: core: Validate channel ID when processing command completions MHI reads the channel ID from the event ring element sent by the device which can be any value between 0 and 255. In order to prevent any out of bound accesses, add a check against the maximum number of channels supported by the controller and those channels not configured yet so as to skip processing of that event ring element. En el kernel de Linux, se ha resuelto la ... • https://git.kernel.org/stable/c/1d3173a3bae7039b765a0956e3e4bf846dbaacb8 •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47284 – isdn: mISDN: netjet: Fix crash in nj_probe:
https://notcve.org/view.php?id=CVE-2021-47284
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: netjet: Fix crash in nj_probe: 'nj_setup' in netjet.c might fail with -EIO and in this case 'card->irq' is initialized and is bigger than zero. A subsequent call to 'nj_release' will free the irq that has not been requested. Fix this bug by deleting the previous assignment to 'card->irq' and just keep the assignment before 'request_irq'. The KASAN's log reveals it: [ 3.354615 ] WARNING: CPU: 0 PID: 1 at kernel/irq/manage.c:1826... • https://git.kernel.org/stable/c/958cb1078ca60d214826fd90a0961a447fade59a • CWE-400: Uncontrolled Resource Consumption CWE-590: Free of Memory not on the Heap •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47283 – net:sfc: fix non-freed irq in legacy irq mode
https://notcve.org/view.php?id=CVE-2021-47283
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net:sfc: fix non-freed irq in legacy irq mode SFC driver can be configured via modparam to work using MSI-X, MSI or legacy IRQ interrupts. In the last one, the interrupt was not properly released on module remove. It was not freed because the flag irqs_hooked was not set during initialization in the case of using legacy IRQ. Example of (trimmed) trace during module remove without this fix: remove_proc_entry: removing non-empty directory 'ir... • https://git.kernel.org/stable/c/8d717c9135a3340ae62d1699484850bfb4112b0c •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47282 – spi: bcm2835: Fix out-of-bounds access with more than 4 slaves
https://notcve.org/view.php?id=CVE-2021-47282
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: spi: bcm2835: Fix out-of-bounds access with more than 4 slaves Commit 571e31fa60b3 ("spi: bcm2835: Cache CS register value for ->prepare_message()") limited the number of slaves to 3 at compile-time. The limitation was necessitated by a statically-sized array prepare_cs[] in the driver private data which contains a per-slave register value. The commit sought to enforce the limitation at run-time by setting the controller's num_chipselect to... • https://git.kernel.org/stable/c/571e31fa60b3697d5db26140e16d5c45c51c9815 •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47281 – ALSA: seq: Fix race of snd_seq_timer_open()
https://notcve.org/view.php?id=CVE-2021-47281
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix race of snd_seq_timer_open() The timer instance per queue is exclusive, and snd_seq_timer_open() should have managed the concurrent accesses. It looks as if it's checking the already existing timer instance at the beginning, but it's not right, because there is no protection, hence any later concurrent call of snd_seq_timer_open() may override the timer instance easily. This may result in UAF, as the leftover timer instance c... • https://git.kernel.org/stable/c/bd7d88b0874f82f7b29d1a53e574cedaf23166ba •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47280 – drm: Fix use-after-free read in drm_getunique()
https://notcve.org/view.php?id=CVE-2021-47280
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: drm: Fix use-after-free read in drm_getunique() There is a time-of-check-to-time-of-use error in drm_getunique() due to retrieving file_priv->master prior to locking the device's master mutex. An example can be seen in the crash report of the use-after-free error found by Syzbot: https://syzkaller.appspot.com/bug?id=148d2f1dfac64af52ffd27b661981a540724f803 In the report, the master pointer was used after being freed. This is because another... • https://git.kernel.org/stable/c/17dab9326ff263c62dab1dbac4492e2938a049e4 •