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CVSS v3.1 |
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: fix amdgpu_irq_put call trace in gmc_v11_0_hw_fini
The gmc.ecc_irq is enabled by firmware per IFWI setting,
and the host driver is not privileged to enable/disable
the interrupt. So, it is meaningless to use the amdgpu_irq_put
function in gmc_v11_0_hw_fini, which also leads to the call
trace.
[ 102.980303] Call Trace:
[ 102.980303] <TASK>
[ 102.980304] gmc_v11_0_hw_fini+0x54/0x90 [amdgpu]
[ 102.980357] gmc_v11_0_suspend+0xe/0x20 [amdgpu]
[ 102.980409] amdgpu_device_ip_suspend_phase2+0x240/0x460 [amdgpu]
[ 102.980459] amdgpu_device_ip_suspend+0x3d/0x80 [amdgpu]
[ 102.980520] amdgpu_device_pre_asic_reset+0xd9/0x490 [amdgpu]
[ 102.980573] amdgpu_device_gpu_recover.cold+0x548/0xce6 [amdgpu]
[ 102.980687] amdgpu_debugfs_reset_work+0x4c/0x70 [amdgpu]
[ 102.980740] process_one_work+0x21f/0x3f0
[ 102.980741] worker_thread+0x200/0x3e0
[ 102.980742] ? process_one_work+0x3f0/0x3f0
[ 102.980743] kthread+0xfd/0x130
[ 102.980743] ? kthread_complete_and_exit+0x20/0x20
[ 102.980744] ret_from_fork+0x22/0x30 |
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix warning in cifs_smb3_do_mount()
This fixes the following warning reported by kernel test robot
fs/smb/client/cifsfs.c:982 cifs_smb3_do_mount() warn: possible
memory leak of 'cifs_sb' |
In the Linux kernel, the following vulnerability has been resolved:
spi: imx: Don't skip cleanup in remove's error path
Returning early in a platform driver's remove callback is wrong. In this
case the dma resources are not released in the error path. this is never
retried later and so this is a permanent leak. To fix this, only skip
hardware disabling if waking the device fails. |
In the Linux kernel, the following vulnerability has been resolved:
drm/msm/dsi: Add missing check for alloc_ordered_workqueue
Add check for the return value of alloc_ordered_workqueue as it may return
NULL pointer and cause NULL pointer dereference.
Patchwork: https://patchwork.freedesktop.org/patch/517646/ |
In the Linux kernel, the following vulnerability has been resolved:
jfs: jfs_dmap: Validate db_l2nbperpage while mounting
In jfs_dmap.c at line 381, BLKTODMAP is used to get a logical block
number inside dbFree(). db_l2nbperpage, which is the log2 number of
blocks per page, is passed as an argument to BLKTODMAP which uses it
for shifting.
Syzbot reported a shift out-of-bounds crash because db_l2nbperpage is
too big. This happens because the large value is set without any
validation in dbMount() at line 181.
Thus, make sure that db_l2nbperpage is correct while mounting.
Max number of blocks per page = Page size / Min block size
=> log2(Max num_block per page) = log2(Page size / Min block size)
= log2(Page size) - log2(Min block size)
=> Max db_l2nbperpage = L2PSIZE - L2MINBLOCKSIZE |
In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds()
This patch fixes a stack-out-of-bounds read in brcmfmac that occurs
when 'buf' that is not null-terminated is passed as an argument of
strsep() in brcmf_c_preinit_dcmds(). This buffer is filled with a firmware
version string by memcpy() in brcmf_fil_iovar_data_get().
The patch ensures buf is null-terminated.
Found by a modified version of syzkaller.
[ 47.569679][ T1897] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43236b for chip BCM43236/3
[ 47.582839][ T1897] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 47.601565][ T1897] ==================================================================
[ 47.602574][ T1897] BUG: KASAN: stack-out-of-bounds in strsep+0x1b2/0x1f0
[ 47.603447][ T1897] Read of size 1 at addr ffffc90001f6f000 by task kworker/0:2/1897
[ 47.604336][ T1897]
[ 47.604621][ T1897] CPU: 0 PID: 1897 Comm: kworker/0:2 Tainted: G O 5.14.0+ #131
[ 47.605617][ T1897] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
[ 47.606907][ T1897] Workqueue: usb_hub_wq hub_event
[ 47.607453][ T1897] Call Trace:
[ 47.607801][ T1897] dump_stack_lvl+0x8e/0xd1
[ 47.608295][ T1897] print_address_description.constprop.0.cold+0xf/0x334
[ 47.609009][ T1897] ? strsep+0x1b2/0x1f0
[ 47.609434][ T1897] ? strsep+0x1b2/0x1f0
[ 47.609863][ T1897] kasan_report.cold+0x83/0xdf
[ 47.610366][ T1897] ? strsep+0x1b2/0x1f0
[ 47.610882][ T1897] strsep+0x1b2/0x1f0
[ 47.611300][ T1897] ? brcmf_fil_iovar_data_get+0x3a/0xf0
[ 47.611883][ T1897] brcmf_c_preinit_dcmds+0x995/0xc40
[ 47.612434][ T1897] ? brcmf_c_set_joinpref_default+0x100/0x100
[ 47.613078][ T1897] ? rcu_read_lock_sched_held+0xa1/0xd0
[ 47.613662][ T1897] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 47.614208][ T1897] ? lock_acquire+0x19d/0x4e0
[ 47.614704][ T1897] ? find_held_lock+0x2d/0x110
[ 47.615236][ T1897] ? brcmf_usb_deq+0x1a7/0x260
[ 47.615741][ T1897] ? brcmf_usb_rx_fill_all+0x5a/0xf0
[ 47.616288][ T1897] brcmf_attach+0x246/0xd40
[ 47.616758][ T1897] ? wiphy_new_nm+0x1703/0x1dd0
[ 47.617280][ T1897] ? kmemdup+0x43/0x50
[ 47.617720][ T1897] brcmf_usb_probe+0x12de/0x1690
[ 47.618244][ T1897] ? brcmf_usbdev_qinit.constprop.0+0x470/0x470
[ 47.618901][ T1897] usb_probe_interface+0x2aa/0x760
[ 47.619429][ T1897] ? usb_probe_device+0x250/0x250
[ 47.619950][ T1897] really_probe+0x205/0xb70
[ 47.620435][ T1897] ? driver_allows_async_probing+0x130/0x130
[ 47.621048][ T1897] __driver_probe_device+0x311/0x4b0
[ 47.621595][ T1897] ? driver_allows_async_probing+0x130/0x130
[ 47.622209][ T1897] driver_probe_device+0x4e/0x150
[ 47.622739][ T1897] __device_attach_driver+0x1cc/0x2a0
[ 47.623287][ T1897] bus_for_each_drv+0x156/0x1d0
[ 47.623796][ T1897] ? bus_rescan_devices+0x30/0x30
[ 47.624309][ T1897] ? lockdep_hardirqs_on_prepare+0x273/0x3e0
[ 47.624907][ T1897] ? trace_hardirqs_on+0x46/0x160
[ 47.625437][ T1897] __device_attach+0x23f/0x3a0
[ 47.625924][ T1897] ? device_bind_driver+0xd0/0xd0
[ 47.626433][ T1897] ? kobject_uevent_env+0x287/0x14b0
[ 47.627057][ T1897] bus_probe_device+0x1da/0x290
[ 47.627557][ T1897] device_add+0xb7b/0x1eb0
[ 47.628027][ T1897] ? wait_for_completion+0x290/0x290
[ 47.628593][ T1897] ? __fw_devlink_link_to_suppliers+0x5a0/0x5a0
[ 47.629249][ T1897] usb_set_configuration+0xf59/0x16f0
[ 47.629829][ T1897] usb_generic_driver_probe+0x82/0xa0
[ 47.630385][ T1897] usb_probe_device+0xbb/0x250
[ 47.630927][ T1897] ? usb_suspend+0x590/0x590
[ 47.631397][ T1897] really_probe+0x205/0xb70
[ 47.631855][ T1897] ? driver_allows_async_probing+0x130/0x130
[ 47.632469][ T1897] __driver_probe_device+0x311/0x4b0
[ 47.633002][
---truncated--- |
In the Linux kernel, the following vulnerability has been resolved:
drm/msm: Make .remove and .shutdown HW shutdown consistent
Drivers' .remove and .shutdown callbacks are executed on different code
paths. The former is called when a device is removed from the bus, while
the latter is called at system shutdown time to quiesce the device.
This means that some overlap exists between the two, because both have to
take care of properly shutting down the hardware. But currently the logic
used in these two callbacks isn't consistent in msm drivers, which could
lead to kernel panic.
For example, on .remove the component is deleted and its .unbind callback
leads to the hardware being shutdown but only if the DRM device has been
marked as registered.
That check doesn't exist in the .shutdown logic and this can lead to the
driver calling drm_atomic_helper_shutdown() for a DRM device that hasn't
been properly initialized.
A situation like this can happen if drivers for expected sub-devices fail
to probe, since the .bind callback will never be executed. If that is the
case, drm_atomic_helper_shutdown() will attempt to take mutexes that are
only initialized if drm_mode_config_init() is called during a device bind.
This bug was attempted to be fixed in commit 623f279c7781 ("drm/msm: fix
shutdown hook in case GPU components failed to bind"), but unfortunately
it still happens in some cases as the one mentioned above, i.e:
systemd-shutdown[1]: Powering off.
kvm: exiting hardware virtualization
platform wifi-firmware.0: Removing from iommu group 12
platform video-firmware.0: Removing from iommu group 10
------------[ cut here ]------------
WARNING: CPU: 6 PID: 1 at drivers/gpu/drm/drm_modeset_lock.c:317 drm_modeset_lock_all_ctx+0x3c4/0x3d0
...
Hardware name: Google CoachZ (rev3+) (DT)
pstate: a0400009 (NzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : drm_modeset_lock_all_ctx+0x3c4/0x3d0
lr : drm_modeset_lock_all_ctx+0x48/0x3d0
sp : ffff80000805bb80
x29: ffff80000805bb80 x28: ffff327c00128000 x27: 0000000000000000
x26: 0000000000000000 x25: 0000000000000001 x24: ffffc95d820ec030
x23: ffff327c00bbd090 x22: ffffc95d8215eca0 x21: ffff327c039c5800
x20: ffff327c039c5988 x19: ffff80000805bbe8 x18: 0000000000000034
x17: 000000040044ffff x16: ffffc95d80cac920 x15: 0000000000000000
x14: 0000000000000315 x13: 0000000000000315 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff80000805bc28 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : ffff327c00128000 x1 : 0000000000000000 x0 : ffff327c039c59b0
Call trace:
drm_modeset_lock_all_ctx+0x3c4/0x3d0
drm_atomic_helper_shutdown+0x70/0x134
msm_drv_shutdown+0x30/0x40
platform_shutdown+0x28/0x40
device_shutdown+0x148/0x350
kernel_power_off+0x38/0x80
__do_sys_reboot+0x288/0x2c0
__arm64_sys_reboot+0x28/0x34
invoke_syscall+0x48/0x114
el0_svc_common.constprop.0+0x44/0xec
do_el0_svc+0x2c/0xc0
el0_svc+0x2c/0x84
el0t_64_sync_handler+0x11c/0x150
el0t_64_sync+0x18c/0x190
---[ end trace 0000000000000000 ]---
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018
Mem abort info:
ESR = 0x0000000096000004
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
Data abort info:
ISV = 0, ISS = 0x00000004
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010eab1000
[0000000000000018] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
...
Hardware name: Google CoachZ (rev3+) (DT)
pstate: a0400009 (NzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ww_mutex_lock+0x28/0x32c
lr : drm_modeset_lock_all_ctx+0x1b0/0x3d0
sp : ffff80000805bb50
x29: ffff80000805bb50 x28: ffff327c00128000 x27: 0000000000000000
x26: 00000
---truncated--- |
In the Linux kernel, the following vulnerability has been resolved:
xfrm: add NULL check in xfrm_update_ae_params
Normally, x->replay_esn and x->preplay_esn should be allocated at
xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the
xfrm_update_ae_params(...) is okay to update them. However, the current
implementation of xfrm_new_ae(...) allows a malicious user to directly
dereference a NULL pointer and crash the kernel like below.
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4
RIP: 0010:memcpy_orig+0xad/0x140
Code: e8 4c 89 5f e0 48 8d 7f e0 73 d2 83 c2 20 48 29 d6 48 29 d7 83 fa 10 72 34 4c 8b 06 4c 8b 4e 08 c
RSP: 0018:ffff888008f57658 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff888008bd0000 RCX: ffffffff8238e571
RDX: 0000000000000018 RSI: ffff888007f64844 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888008f57818
R13: ffff888007f64aa4 R14: 0000000000000000 R15: 0000000000000000
FS: 00000000014013c0(0000) GS:ffff88806d600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000054d8000 CR4: 00000000000006f0
Call Trace:
<TASK>
? __die+0x1f/0x70
? page_fault_oops+0x1e8/0x500
? __pfx_is_prefetch.constprop.0+0x10/0x10
? __pfx_page_fault_oops+0x10/0x10
? _raw_spin_unlock_irqrestore+0x11/0x40
? fixup_exception+0x36/0x460
? _raw_spin_unlock_irqrestore+0x11/0x40
? exc_page_fault+0x5e/0xc0
? asm_exc_page_fault+0x26/0x30
? xfrm_update_ae_params+0xd1/0x260
? memcpy_orig+0xad/0x140
? __pfx__raw_spin_lock_bh+0x10/0x10
xfrm_update_ae_params+0xe7/0x260
xfrm_new_ae+0x298/0x4e0
? __pfx_xfrm_new_ae+0x10/0x10
? __pfx_xfrm_new_ae+0x10/0x10
xfrm_user_rcv_msg+0x25a/0x410
? __pfx_xfrm_user_rcv_msg+0x10/0x10
? __alloc_skb+0xcf/0x210
? stack_trace_save+0x90/0xd0
? filter_irq_stacks+0x1c/0x70
? __stack_depot_save+0x39/0x4e0
? __kasan_slab_free+0x10a/0x190
? kmem_cache_free+0x9c/0x340
? netlink_recvmsg+0x23c/0x660
? sock_recvmsg+0xeb/0xf0
? __sys_recvfrom+0x13c/0x1f0
? __x64_sys_recvfrom+0x71/0x90
? do_syscall_64+0x3f/0x90
? entry_SYSCALL_64_after_hwframe+0x72/0xdc
? copyout+0x3e/0x50
netlink_rcv_skb+0xd6/0x210
? __pfx_xfrm_user_rcv_msg+0x10/0x10
? __pfx_netlink_rcv_skb+0x10/0x10
? __pfx_sock_has_perm+0x10/0x10
? mutex_lock+0x8d/0xe0
? __pfx_mutex_lock+0x10/0x10
xfrm_netlink_rcv+0x44/0x50
netlink_unicast+0x36f/0x4c0
? __pfx_netlink_unicast+0x10/0x10
? netlink_recvmsg+0x500/0x660
netlink_sendmsg+0x3b7/0x700
This Null-ptr-deref bug is assigned CVE-2023-3772. And this commit
adds additional NULL check in xfrm_update_ae_params to fix the NPD. |
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can
lead to the use of wrong `CIDR_POS(c)` for calculating array offsets,
which can lead to integer underflow. As a result, it leads to slab
out-of-bound access.
This patch adds back the IP_SET_HASH_WITH_NET0 macro to
ip_set_hash_netportnet to address the issue. |
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Pointer may be dereferenced
Klocwork tool reported pointer 'rport' returned from call to function
fc_bsg_to_rport() may be NULL and will be dereferenced.
Add a fix to validate rport before dereferencing. |
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: don't hold ni_lock when calling truncate_setsize()
syzbot is reporting hung task at do_user_addr_fault() [1], for there is
a silent deadlock between PG_locked bit and ni_lock lock.
Since filemap_update_page() calls filemap_read_folio() after calling
folio_trylock() which will set PG_locked bit, ntfs_truncate() must not
call truncate_setsize() which will wait for PG_locked bit to be cleared
when holding ni_lock lock. |
In the Linux kernel, the following vulnerability has been resolved:
irqchip/ti-sci: Fix refcount leak in ti_sci_intr_irq_domain_probe
of_irq_find_parent() returns a node pointer with refcount incremented,
We should use of_node_put() on it when not needed anymore.
Add missing of_node_put() to avoid refcount leak. |
In the Linux kernel, the following vulnerability has been resolved:
udf: Fix uninitialized array access for some pathnames
For filenames that begin with . and are between 2 and 5 characters long,
UDF charset conversion code would read uninitialized memory in the
output buffer. The only practical impact is that the name may be prepended a
"unification hash" when it is not actually needed but still it is good
to fix this. |
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes
A bad USB device is able to construct a service connection response
message with target endpoint being ENDPOINT0 which is reserved for
HTC_CTRL_RSVD_SVC and should not be modified to be used for any other
services.
Reject such service connection responses.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller. |
In the Linux kernel, the following vulnerability has been resolved:
skbuff: Fix a race between coalescing and releasing SKBs
Commit 1effe8ca4e34 ("skbuff: fix coalescing for page_pool fragment
recycling") allowed coalescing to proceed with non page pool page and page
pool page when @from is cloned, i.e.
to->pp_recycle --> false
from->pp_recycle --> true
skb_cloned(from) --> true
However, it actually requires skb_cloned(@from) to hold true until
coalescing finishes in this situation. If the other cloned SKB is
released while the merging is in process, from_shinfo->nr_frags will be
set to 0 toward the end of the function, causing the increment of frag
page _refcount to be unexpectedly skipped resulting in inconsistent
reference counts. Later when SKB(@to) is released, it frees the page
directly even though the page pool page is still in use, leading to
use-after-free or double-free errors. So it should be prohibited.
The double-free error message below prompted us to investigate:
BUG: Bad page state in process swapper/1 pfn:0e0d1
page:00000000c6548b28 refcount:-1 mapcount:0 mapping:0000000000000000
index:0x2 pfn:0xe0d1
flags: 0xfffffc0000000(node=0|zone=1|lastcpupid=0x1fffff)
raw: 000fffffc0000000 0000000000000000 ffffffff00000101 0000000000000000
raw: 0000000000000002 0000000000000000 ffffffffffffffff 0000000000000000
page dumped because: nonzero _refcount
CPU: 1 PID: 0 Comm: swapper/1 Tainted: G E 6.2.0+
Call Trace:
<IRQ>
dump_stack_lvl+0x32/0x50
bad_page+0x69/0xf0
free_pcp_prepare+0x260/0x2f0
free_unref_page+0x20/0x1c0
skb_release_data+0x10b/0x1a0
napi_consume_skb+0x56/0x150
net_rx_action+0xf0/0x350
? __napi_schedule+0x79/0x90
__do_softirq+0xc8/0x2b1
__irq_exit_rcu+0xb9/0xf0
common_interrupt+0x82/0xa0
</IRQ>
<TASK>
asm_common_interrupt+0x22/0x40
RIP: 0010:default_idle+0xb/0x20 |
In the Linux kernel, the following vulnerability has been resolved:
vxlan: Fix memory leaks in error path
The memory allocated by vxlan_vnigroup_init() is not freed in the error
path, leading to memory leaks [1]. Fix by calling
vxlan_vnigroup_uninit() in the error path.
The leaks can be reproduced by annotating gro_cells_init() with
ALLOW_ERROR_INJECTION() and then running:
# echo "100" > /sys/kernel/debug/fail_function/probability
# echo "1" > /sys/kernel/debug/fail_function/times
# echo "gro_cells_init" > /sys/kernel/debug/fail_function/inject
# printf %#x -12 > /sys/kernel/debug/fail_function/gro_cells_init/retval
# ip link add name vxlan0 type vxlan dstport 4789 external vnifilter
RTNETLINK answers: Cannot allocate memory
[1]
unreferenced object 0xffff88810db84a00 (size 512):
comm "ip", pid 330, jiffies 4295010045 (age 66.016s)
hex dump (first 32 bytes):
f8 d5 76 0e 81 88 ff ff 01 00 00 00 00 00 00 02 ..v.............
03 00 04 00 48 00 00 00 00 00 00 01 04 00 01 00 ....H...........
backtrace:
[<ffffffff81a3097a>] kmalloc_trace+0x2a/0x60
[<ffffffff82f049fc>] vxlan_vnigroup_init+0x4c/0x160
[<ffffffff82ecd69e>] vxlan_init+0x1ae/0x280
[<ffffffff836858ca>] register_netdevice+0x57a/0x16d0
[<ffffffff82ef67b7>] __vxlan_dev_create+0x7c7/0xa50
[<ffffffff82ef6ce6>] vxlan_newlink+0xd6/0x130
[<ffffffff836d02ab>] __rtnl_newlink+0x112b/0x18a0
[<ffffffff836d0a8c>] rtnl_newlink+0x6c/0xa0
[<ffffffff836c0ddf>] rtnetlink_rcv_msg+0x43f/0xd40
[<ffffffff83908ce0>] netlink_rcv_skb+0x170/0x440
[<ffffffff839066af>] netlink_unicast+0x53f/0x810
[<ffffffff839072d8>] netlink_sendmsg+0x958/0xe70
[<ffffffff835c319f>] ____sys_sendmsg+0x78f/0xa90
[<ffffffff835cd6da>] ___sys_sendmsg+0x13a/0x1e0
[<ffffffff835cd94c>] __sys_sendmsg+0x11c/0x1f0
[<ffffffff8424da78>] do_syscall_64+0x38/0x80
unreferenced object 0xffff88810e76d5f8 (size 192):
comm "ip", pid 330, jiffies 4295010045 (age 66.016s)
hex dump (first 32 bytes):
04 00 00 00 00 00 00 00 db e1 4f e7 00 00 00 00 ..........O.....
08 d6 76 0e 81 88 ff ff 08 d6 76 0e 81 88 ff ff ..v.......v.....
backtrace:
[<ffffffff81a3162e>] __kmalloc_node+0x4e/0x90
[<ffffffff81a0e166>] kvmalloc_node+0xa6/0x1f0
[<ffffffff8276e1a3>] bucket_table_alloc.isra.0+0x83/0x460
[<ffffffff8276f18b>] rhashtable_init+0x43b/0x7c0
[<ffffffff82f04a1c>] vxlan_vnigroup_init+0x6c/0x160
[<ffffffff82ecd69e>] vxlan_init+0x1ae/0x280
[<ffffffff836858ca>] register_netdevice+0x57a/0x16d0
[<ffffffff82ef67b7>] __vxlan_dev_create+0x7c7/0xa50
[<ffffffff82ef6ce6>] vxlan_newlink+0xd6/0x130
[<ffffffff836d02ab>] __rtnl_newlink+0x112b/0x18a0
[<ffffffff836d0a8c>] rtnl_newlink+0x6c/0xa0
[<ffffffff836c0ddf>] rtnetlink_rcv_msg+0x43f/0xd40
[<ffffffff83908ce0>] netlink_rcv_skb+0x170/0x440
[<ffffffff839066af>] netlink_unicast+0x53f/0x810
[<ffffffff839072d8>] netlink_sendmsg+0x958/0xe70
[<ffffffff835c319f>] ____sys_sendmsg+0x78f/0xa90 |
In the Linux kernel, the following vulnerability has been resolved:
vxlan: Fix nexthop hash size
The nexthop code expects a 31 bit hash, such as what is returned by
fib_multipath_hash() and rt6_multipath_hash(). Passing the 32 bit hash
returned by skb_get_hash() can lead to problems related to the fact that
'int hash' is a negative number when the MSB is set.
In the case of hash threshold nexthop groups, nexthop_select_path_hthr()
will disproportionately select the first nexthop group entry. In the case
of resilient nexthop groups, nexthop_select_path_res() may do an out of
bounds access in nh_buckets[], for example:
hash = -912054133
num_nh_buckets = 2
bucket_index = 65535
which leads to the following panic:
BUG: unable to handle page fault for address: ffffc900025910c8
PGD 100000067 P4D 100000067 PUD 10026b067 PMD 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 4 PID: 856 Comm: kworker/4:3 Not tainted 6.5.0-rc2+ #34
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:nexthop_select_path+0x197/0xbf0
Code: c1 e4 05 be 08 00 00 00 4c 8b 35 a4 14 7e 01 4e 8d 6c 25 00 4a 8d 7c 25 08 48 01 dd e8 c2 25 15 ff 49 8d 7d 08 e8 39 13 15 ff <4d> 89 75 08 48 89 ef e8 7d 12 15 ff 48 8b 5d 00 e8 14 55 2f 00 85
RSP: 0018:ffff88810c36f260 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000002000c0 RCX: ffffffffaf02dd77
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffc900025910c8
RBP: ffffc900025910c0 R08: 0000000000000001 R09: fffff520004b2219
R10: ffffc900025910cf R11: 31392d2068736168 R12: 00000000002000c0
R13: ffffc900025910c0 R14: 00000000fffef608 R15: ffff88811840e900
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900025910c8 CR3: 0000000129d00000 CR4: 0000000000750ee0
PKRU: 55555554
Call Trace:
<TASK>
? __die+0x23/0x70
? page_fault_oops+0x1ee/0x5c0
? __pfx_is_prefetch.constprop.0+0x10/0x10
? __pfx_page_fault_oops+0x10/0x10
? search_bpf_extables+0xfe/0x1c0
? fixup_exception+0x3b/0x470
? exc_page_fault+0xf6/0x110
? asm_exc_page_fault+0x26/0x30
? nexthop_select_path+0x197/0xbf0
? nexthop_select_path+0x197/0xbf0
? lock_is_held_type+0xe7/0x140
vxlan_xmit+0x5b2/0x2340
? __lock_acquire+0x92b/0x3370
? __pfx_vxlan_xmit+0x10/0x10
? __pfx___lock_acquire+0x10/0x10
? __pfx_register_lock_class+0x10/0x10
? skb_network_protocol+0xce/0x2d0
? dev_hard_start_xmit+0xca/0x350
? __pfx_vxlan_xmit+0x10/0x10
dev_hard_start_xmit+0xca/0x350
__dev_queue_xmit+0x513/0x1e20
? __pfx___dev_queue_xmit+0x10/0x10
? __pfx_lock_release+0x10/0x10
? mark_held_locks+0x44/0x90
? skb_push+0x4c/0x80
? eth_header+0x81/0xe0
? __pfx_eth_header+0x10/0x10
? neigh_resolve_output+0x215/0x310
? ip6_finish_output2+0x2ba/0xc90
ip6_finish_output2+0x2ba/0xc90
? lock_release+0x236/0x3e0
? ip6_mtu+0xbb/0x240
? __pfx_ip6_finish_output2+0x10/0x10
? find_held_lock+0x83/0xa0
? lock_is_held_type+0xe7/0x140
ip6_finish_output+0x1ee/0x780
ip6_output+0x138/0x460
? __pfx_ip6_output+0x10/0x10
? __pfx___lock_acquire+0x10/0x10
? __pfx_ip6_finish_output+0x10/0x10
NF_HOOK.constprop.0+0xc0/0x420
? __pfx_NF_HOOK.constprop.0+0x10/0x10
? ndisc_send_skb+0x2c0/0x960
? __pfx_lock_release+0x10/0x10
? __local_bh_enable_ip+0x93/0x110
? lock_is_held_type+0xe7/0x140
ndisc_send_skb+0x4be/0x960
? __pfx_ndisc_send_skb+0x10/0x10
? mark_held_locks+0x65/0x90
? find_held_lock+0x83/0xa0
ndisc_send_ns+0xb0/0x110
? __pfx_ndisc_send_ns+0x10/0x10
addrconf_dad_work+0x631/0x8e0
? lock_acquire+0x180/0x3f0
? __pfx_addrconf_dad_work+0x10/0x10
? mark_held_locks+0x24/0x90
process_one_work+0x582/0x9c0
? __pfx_process_one_work+0x10/0x10
? __pfx_do_raw_spin_lock+0x10/0x10
? mark_held_locks+0x24/0x90
worker_thread+0x93/0x630
? __kthread_parkme+0xdc/0x100
? __pfx_worker_thread+0x10/0x10
kthread+0x1a5/0x1e0
? __pfx_kthread+0x10/0x10
ret_from_fork+0x34/0x60
---truncated--- |
In the Linux kernel, the following vulnerability has been resolved:
usb: dwc3: qcom: Fix potential memory leak
Function dwc3_qcom_probe() allocates memory for resource structure
which is pointed by parent_res pointer. This memory is not
freed. This leads to memory leak. Use stack memory to prevent
memory leak.
Found by Linux Verification Center (linuxtesting.org) with SVACE. |
In the Linux kernel, the following vulnerability has been resolved:
USB: uhci: fix memory leak with using debugfs_lookup()
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once. |
A flaw has been found in Campcodes Online Job Finder System 1.0. This affects an unknown function of the file /index.php?q=result&searchfor=bycompany. This manipulation of the argument Search causes sql injection. The attack can be initiated remotely. The exploit has been published and may be used. |