UBUNTU-CVE-2021-47337

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix bad pointer dereference when ehandler kthread is invalid Commit 66a834d09293 "scsi: core: Fix error handling of scsihostalloc" changed the allocation logic to call putdevice to perform host cleanup with the...

CVE-2021-47337

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix bad pointer dereference when ehandler kthread is invalid Commit 66a834d09293 "scsi: core: Fix error handling of scsihostalloc" changed the allocation logic to call putdevice to perform host cleanup with the...

CVE-2021-47337 scsi: core: Fix bad pointer dereference when ehandler kthread is invalid

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix bad pointer dereference when ehandler kthread is invalid Commit 66a834d09293 "scsi: core: Fix error handling of scsihostalloc" changed the allocation logic to call putdevice to perform host cleanup with the...

CVE-2021-47337

The CVE-2021-47337 issue is in the Linux kernel SCSI core path: when an error arises during scsi_host_alloc() and the error-handling ehandler thread fails to spawn, shost->ehandler may be set to ERR_PTR(-ENOMEM) and scsi_host_dev_release() would call kthread_stop() on a NULL/invalid pointer, r...

CVE-2021-47337 scsi: core: Fix bad pointer dereference when ehandler kthread is invalid

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix bad pointer dereference when ehandler kthread is invalid Commit 66a834d09293 "scsi: core: Fix error handling of scsihostalloc" changed the allocation logic to call putdevice to perform host cleanup with the...

CVE-2024-35971

In the Linux kernel, the following vulnerability has been resolved: net: ks8851: Handle softirqs at the end of IRQ thread to fix hang The ks8851irq thread may call ks8851rxpkts in case there are any packets in the MAC FIFO, which calls netifrx. This netifrx implementation is guarded by...

CVE-2024-35971

In the Linux kernel, the following vulnerability has been resolved: net: ks8851: Handle softirqs at the end of IRQ thread to fix hang The ks8851irq thread may call ks8851rxpkts in case there are any packets in the MAC FIFO, which calls netifrx. This netifrx implementation is guarded by...

CVE-2024-36007

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumacltcam: Fix warning during rehash As previously explained, the rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks all the filters with the same priority in t...

CVE-2024-35929 rcu/nocb: Fix WARN_ON_ONCE() in the rcu_nocb_bypass_lock()

In the Linux kernel, the following vulnerability has been resolved: rcu/nocb: Fix WARNONONCE in the rcunocbbypasslock For the kernels built with CONFIGRCUNOCBCPUDEFAULTALL=y and CONFIGRCULAZY=y, the following scenarios will trigger WARNONONCE in the rcunocbbypasslock and rcunocbwaitcontended...

CVE-2024-35929 rcu/nocb: Fix WARN_ON_ONCE() in the rcu_nocb_bypass_lock()

In the Linux kernel, the following vulnerability has been resolved: rcu/nocb: Fix WARNONONCE in the rcunocbbypasslock For the kernels built with CONFIGRCUNOCBCPUDEFAULTALL=y and CONFIGRCULAZY=y, the following scenarios will trigger WARNONONCE in the rcunocbbypasslock and rcunocbwaitcontended...

CVE-2024-35853

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumacltcam: Fix memory leak during rehash The rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks all the filters with the same priority in the region and in each...

CVE-2024-27060 thunderbolt: Fix NULL pointer dereference in tb_port_update_credits()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Fix NULL pointer dereference in tbportupdatecredits Olliver reported that his system crashes when plugging in Thunderbolt 1 device: BUG: kernel NULL pointer dereference, address: 0000000000000020 PF: supervisor read...

CVE-2024-26958 nfs: fix UAF in direct writes

In the Linux kernel, the following vulnerability has been resolved: nfs: fix UAF in direct writes In production we have been hitting the following warning consistently ------------ cut here ------------ refcountt: underflow; use-after-free. WARNING: CPU: 17 PID: 1800359 at lib/refcount.c:28...

CVE-2024-26958 nfs: fix UAF in direct writes

In the Linux kernel, the following vulnerability has been resolved: nfs: fix UAF in direct writes In production we have been hitting the following warning consistently ------------ cut here ------------ refcountt: underflow; use-after-free. WARNING: CPU: 17 PID: 1800359 at lib/refcount.c:28...

CVE-2024-26944 btrfs: zoned: fix use-after-free in do_zone_finish()

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix use-after-free in dozonefinish Shinichiro reported the following use-after-free triggered by the device replace operation in fstests btrfs/070. BTRFS info device nullb1: scrub: finished on devid 1 with status: 0...

kernel: bpf, cpumap: Make sure kthread is running before map update returns

A race condition was found in the Linux kernel's BPF cpumap implementation in the kthread lifecycle management. A local user can trigger this issue by running XDP redirect operations when the per-CPU kthread is stopped prematurely before processing queued frames, causing the cleanup code to find ...

CVE-2024-26890

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: fix out of bounds memory access The problem is detected by KASAN. btrtl driver uses private hci data to store 'struct btrealtekdata'. If btrtl driver is used with btusb, then memory for private hci data is...

CVE-2024-26750 af_unix: Drop oob_skb ref before purging queue in GC.

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop oobskb ref before purging queue in GC. syzbot reported another task hung in unixgc. 0 The current while loop assumes that all of the left candidates have oobskb and calling kfreeskboobskb releases the remaining...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Move scsihostbusy out of host lock for waking up EH handler Inside scsiehwakeup, scsihostbusy is called & checked with host lock every time for deciding if error handler kthread needs to be waken up. This can be too...

CVE-2021-47065

In the Linux kernel, the following vulnerability has been resolved: rtw88: Fix array overrun in rtwgettxpowerparams Using a kernel with the Undefined Behaviour Sanity Checker UBSAN enabled, the following array overrun is logged:...