Linux: >> Linux Kernel >> 4.14.139 Security Vulnerabilities
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_fastopen.
While reading sysctl_tcp_fastopen, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
While reading sysctl_tcp_notsent_lowat, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
igmp: Fix data-races around sysctl_igmp_qrv.
While reading sysctl_igmp_qrv, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.
This test can be packed into a helper, so such changes will be in the
follow-up series after net is merged into net-next.
qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv);
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
igmp: Fix data-races around sysctl_igmp_llm_reports.
While reading sysctl_igmp_llm_reports, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.
This test can be packed into a helper, so such changes will be in the
follow-up series after net is merged into net-next.
if (ipv4_is_local_multicast(pmc->multiaddr) &&
!READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: fix dma queue left shift overflow issue
When queue number is > 4, left shift overflows due to 32 bits
integer variable. Mask calculation is wrong for MTL_RXQ_DMA_MAP1.
If CONFIG_UBSAN is enabled, kernel dumps below warning:
[ 10.363842] ==================================================================
[ 10.363882] UBSAN: shift-out-of-bounds in /build/linux-intel-iotg-5.15-8e6Tf4/
linux-intel-iotg-5.15-5.15.0/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c:224:12
[ 10.363929] shift exponent 40 is too large for 32-bit type 'unsigned int'
[ 10.363953] CPU: 1 PID: 599 Comm: NetworkManager Not tainted 5.15.0-1003-intel-iotg
[ 10.363956] Hardware name: ADLINK Technology Inc. LEC-EL/LEC-EL, BIOS 0.15.11 12/22/2021
[ 10.363958] Call Trace:
[ 10.363960] <TASK>
[ 10.363963] dump_stack_lvl+0x4a/0x5f
[ 10.363971] dump_stack+0x10/0x12
[ 10.363974] ubsan_epilogue+0x9/0x45
[ 10.363976] __ubsan_handle_shift_out_of_bounds.cold+0x61/0x10e
[ 10.363979] ? wake_up_klogd+0x4a/0x50
[ 10.363983] ? vprintk_emit+0x8f/0x240
[ 10.363986] dwmac4_map_mtl_dma.cold+0x42/0x91 [stmmac]
[ 10.364001] stmmac_mtl_configuration+0x1ce/0x7a0 [stmmac]
[ 10.364009] ? dwmac410_dma_init_channel+0x70/0x70 [stmmac]
[ 10.364020] stmmac_hw_setup.cold+0xf/0xb14 [stmmac]
[ 10.364030] ? page_pool_alloc_pages+0x4d/0x70
[ 10.364034] ? stmmac_clear_tx_descriptors+0x6e/0xe0 [stmmac]
[ 10.364042] stmmac_open+0x39e/0x920 [stmmac]
[ 10.364050] __dev_open+0xf0/0x1a0
[ 10.364054] __dev_change_flags+0x188/0x1f0
[ 10.364057] dev_change_flags+0x26/0x60
[ 10.364059] do_setlink+0x908/0xc40
[ 10.364062] ? do_setlink+0xb10/0xc40
[ 10.364064] ? __nla_validate_parse+0x4c/0x1a0
[ 10.364068] __rtnl_newlink+0x597/0xa10
[ 10.364072] ? __nla_reserve+0x41/0x50
[ 10.364074] ? __kmalloc_node_track_caller+0x1d0/0x4d0
[ 10.364079] ? pskb_expand_head+0x75/0x310
[ 10.364082] ? nla_reserve_64bit+0x21/0x40
[ 10.364086] ? skb_free_head+0x65/0x80
[ 10.364089] ? security_sock_rcv_skb+0x2c/0x50
[ 10.364094] ? __cond_resched+0x19/0x30
[ 10.364097] ? kmem_cache_alloc_trace+0x15a/0x420
[ 10.364100] rtnl_newlink+0x49/0x70
This change fixes MTL_RXQ_DMA_MAP1 mask issue and channel/queue
mapping warning.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216195
CVSS Score
7.8
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_probe_interval.
While reading sysctl_tcp_probe_interval, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_recovery.
While reading sysctl_tcp_recovery, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.
While reading sysctl_tcp_thin_linear_timeouts, it can be changed
concurrently. Thus, we need to add READ_ONCE() to its reader.
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
udp: Fix a data-race around sysctl_udp_l3mdev_accept.
While reading sysctl_udp_l3mdev_accept, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26
In the Linux kernel, the following vulnerability has been resolved:
ip: Fix data-races around sysctl_ip_prot_sock.
sysctl_ip_prot_sock is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
CVSS Score
4.7
EPSS Score
0.0
Published
2025-02-26