CVE-2024-50039

In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root qdisc Most qdiscs maintain their backlog using qdiscpktlenskb on the assumption it is invariant between the enqueue and dequeue handlers. Unfortunately syzbot can crash a host rather easily...

AZL-51449 CVE-2024-50039 affecting package kernel for versions less than 5.15.173.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root qdisc Most qdiscs maintain their backlog using qdiscpktlenskb on the assumption it is invariant between the enqueue and dequeue handlers. Unfortunately syzbot can crash a host rather easily...

CVE-2022-49007

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL pointer dereference in nilfspalloccommitfreeentry Syzbot reported a null-ptr-deref bug: NILFS loop0: segctord starting. Construction interval = 5 seconds, CP frequency 3c 02 00 0f 85 26 05 00 00 49 8b 46 10 be a6...

CVE-2022-48993

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

UBUNTU-CVE-2022-49014

In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix use-after-free in tundetach syzbot reported use-after-free in tundetach 1. This causes call trace like below: ================================================================== BUG: KASAN: use-after-free in...

CVE-2022-49014 net: tun: Fix use-after-free in tun_detach()

In the Linux kernel, the following vulnerability has been resolved: net: tun: Fix use-after-free in tundetach syzbot reported use-after-free in tundetach 1. This causes call trace like below: ================================================================== BUG: KASAN: use-after-free in...

CVE-2022-49007 nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry()

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL pointer dereference in nilfspalloccommitfreeentry Syzbot reported a null-ptr-deref bug: NILFS loop0: segctord starting. Construction interval = 5 seconds, CP frequency 3c 02 00 0f 85 26 05 00 00 49 8b 46 10 be a6...

CVE-2022-48993

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CVE-2022-48993

CVE-2022-48993 is rejected/not used per the initial description; no active vulnerability details are provided.

CVE-2022-48956 ipv6: avoid use-after-free in ip6_fragment()

In the Linux kernel, the following vulnerability has been resolved: ipv6: avoid use-after-free in ip6fragment Blamed commit claimed rcureadlock was held by ip6fragment callers. It seems to not be always true, at least for UDP stack. syzbot reported: BUG: KASAN: use-after-free in ip6dstidev...

CVE-2022-48956 ipv6: avoid use-after-free in ip6_fragment()

In the Linux kernel, the following vulnerability has been resolved: ipv6: avoid use-after-free in ip6fragment Blamed commit claimed rcureadlock was held by ip6fragment callers. It seems to not be always true, at least for UDP stack. syzbot reported: BUG: KASAN: use-after-free in ip6dstidev...

CVE-2024-50060 io_uring: check if we need to reschedule during overflow flush

In the Linux kernel, the following vulnerability has been resolved: iouring: check if we need to reschedule during overflow flush In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously...

CVE-2024-50060 io_uring: check if we need to reschedule during overflow flush

In the Linux kernel, the following vulnerability has been resolved: iouring: check if we need to reschedule during overflow flush In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously...

CVE-2024-50039 net/sched: accept TCA_STAB only for root qdisc

In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root qdisc Most qdiscs maintain their backlog using qdiscpktlenskb on the assumption it is invariant between the enqueue and dequeue handlers. Unfortunately syzbot can crash a host rather easily...

CVE-2024-50039 net/sched: accept TCA_STAB only for root qdisc

In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root qdisc Most qdiscs maintain their backlog using qdiscpktlenskb on the assumption it is invariant between the enqueue and dequeue handlers. Unfortunately syzbot can crash a host rather easily...

CVE-2024-50035 ppp: fix ppp_async_encode() illegal access

In the Linux kernel, the following vulnerability has been resolved: ppp: fix pppasyncencode illegal access syzbot reported an issue in pppasyncencode 1 In this case, pppoesendmsg is called with a zero size. Then pppasyncencode is called with an empty skb. BUG: KMSAN: uninit-value in pppasyncencod...

CVE-2024-50035 ppp: fix ppp_async_encode() illegal access

In the Linux kernel, the following vulnerability has been resolved: ppp: fix pppasyncencode illegal access syzbot reported an issue in pppasyncencode 1 In this case, pppoesendmsg is called with a zero size. Then pppasyncencode is called with an empty skb. BUG: KMSAN: uninit-value in pppasyncencod...

CVE-2024-50035 ppp: fix ppp_async_encode() illegal access

In the Linux kernel, the following vulnerability has been resolved: ppp: fix pppasyncencode illegal access syzbot reported an issue in pppasyncencode 1 In this case, pppoesendmsg is called with a zero size. Then pppasyncencode is called with an empty skb. BUG: KMSAN: uninit-value in pppasyncencod...

CVE-2024-50033 slip: make slhc_remember() more robust against malicious packets

In the Linux kernel, the following vulnerability has been resolved: slip: make slhcremember more robust against malicious packets syzbot found that slhcremember was missing checks against malicious packets 1. slhcremember only checked the size of the packet was at least 20, which is not good...

CVE-2024-50033

CVE-2024-50033 is a Linux kernel issue in the SLIP driver (drivers/net/slip/slhc.c). The root cause was that slhc_remember() did not adequately validate malicious packets, only checking that the packet length was at least 20 bytes. This allowed malformed frames to slip through without ensuring th...