kernel/linux.git, branch v6.18.15

Linux 6.18.15

2026-02-27T21:05:10+00:00

Signed-off-by: Greg Kroah-Hartman

netfilter: nf_tables: add .abort_skip_removal flag for set types

2026-02-27T21:05:10+00:00

commit f175b46d9134f708358b5404730c6dfa200fbf3c upstream. The pipapo set backend is the only user of the .abort interface so far. To speed up pipapo abort path, removals are skipped. The follow up patch updates the rbtree to use to build an array of ordered elements, then use binary search. This needs a new .abort interface but, unlike pipapo, it also need to undo/remove elements. Add a flag and use it from the pipapo set backend. Signed-off-by: Pablo Neira Ayuso Signed-off-by: Florian Westphal Cc: "Kris Karas (Bug Reporting)" Cc: Genes Lists Cc: Philip Müller Signed-off-by: Greg Kroah-Hartman

Linux 6.18.14

2026-02-26T22:59:47+00:00

Link: https://lore.kernel.org/r/20260225012348.915798704@linuxfoundation.org Tested-by: Shung-Hsi Yu Tested-by: Salvatore Bonaccorso Tested-by: Ron Economos Tested-by: Jon Hunter Tested-by: Jeffrin Jose T Link: https://lore.kernel.org/r/20260225151847.709818960@linuxfoundation.org Tested-by: Peter Schneider Tested-by: Jeffrin Jose T Tested-by: Brett A C Sheffield Tested-by: Florian Fainelli Tested-by: Jon Hunter Tested-by: Luna Jernberg Tested-by: Justin M. Forbes Tested-by: Miguel Ojeda Signed-off-by: Greg Kroah-Hartman

ata: libata-core: fix cancellation of a port deferred qc work

2026-02-26T22:59:47+00:00

commit 55db009926634b20955bd8abbee921adbc8d2cb4 upstream. cancel_work_sync() is a sleeping function so it cannot be called with the spin lock of a port being held. Move the call to this function in ata_port_detach() after EH completes, with the port lock released, together with other work cancellation calls. Fixes: 0ea84089dbf6 ("ata: libata-scsi: avoid Non-NCQ command starvation") Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Igor Pylypiv Signed-off-by: Greg Kroah-Hartman

ata: libata-eh: correctly handle deferred qc timeouts

2026-02-26T22:59:47+00:00

commit eddb98ad9364b4e778768785d46cfab04ce52100 upstream. A deferred qc may timeout while waiting for the device queue to drain to be submitted. In such case, since the qc is not active, ata_scsi_cmd_error_handler() ends up calling scsi_eh_finish_cmd(), which frees the qc. But as the port deferred_qc field still references this finished/freed qc, the deferred qc work may eventually attempt to call ata_qc_issue() against this invalid qc, leading to errors such as reported by UBSAN (syzbot run): UBSAN: shift-out-of-bounds in drivers/ata/libata-core.c:5166:24 shift exponent 4210818301 is too large for 64-bit type 'long long unsigned int' ... Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 ubsan_epilogue+0xa/0x30 lib/ubsan.c:233 __ubsan_handle_shift_out_of_bounds+0x279/0x2a0 lib/ubsan.c:494 ata_qc_issue.cold+0x38/0x9f drivers/ata/libata-core.c:5166 ata_scsi_deferred_qc_work+0x154/0x1f0 drivers/ata/libata-scsi.c:1679 process_one_work+0x9d7/0x1920 kernel/workqueue.c:3275 process_scheduled_works kernel/workqueue.c:3358 [inline] worker_thread+0x5da/0xe40 kernel/workqueue.c:3439 kthread+0x370/0x450 kernel/kthread.c:467 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Fix this by checking if the qc of a timed out SCSI command is a deferred one, and in such case, clear the port deferred_qc field and finish the SCSI command with DID_TIME_OUT. Reported-by: syzbot+1f77b8ca15336fff21ff@syzkaller.appspotmail.com Fixes: 0ea84089dbf6 ("ata: libata-scsi: avoid Non-NCQ command starvation") Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Igor Pylypiv Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Add an hdmi_hpd_debounce_delay_ms module

2026-02-26T22:59:47+00:00

commit 6a681cd9034587fe3550868bacfbd639d1c6891f upstream. [Why&How] Right now, the HDMI HPD filter is enabled by default at 1500ms. We want to disable it by default, as most modern displays with HDMI do not require it for DPMS mode. The HPD can instead be enabled as a driver parameter with a custom delay value in ms (up to 5000ms). Fixes: c918e75e1ed9 ("drm/amd/display: Add an HPD filter for HDMI") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4859 Signed-off-by: Ivan Lipski Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

net: stmmac: dwmac-loongson: Set clk_csr_i to 100-150MHz

2026-02-26T22:59:47+00:00

commit e1aa5ef892fb4fa9014a25e87b64b97347919d37 upstream. Current clk_csr_i setting of Loongson STMMAC (including LS7A1000/2000 and LS2K1000/2000/3000) are copy & paste from other drivers. In fact, Loongson STMMAC use 125MHz clocks and need 62 freq division to within 2.5MHz, meeting most PHY MDC requirement. So fix by setting clk_csr_i to 100-150MHz, otherwise some PHYs may link fail. Cc: stable@vger.kernel.org Fixes: 30bba69d7db40e7 ("stmmac: pci: Add dwmac support for Loongson") Signed-off-by: Hongliang Wang Signed-off-by: Huacai Chen Link: https://patch.msgid.link/20260203062901.2158236-1-chenhuacai@loongson.cn Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Clear HDMI HPD pending work only if it is enabled

2026-02-26T22:59:47+00:00

commit 17b2c526fd8026d8e0f4c0e7f94fc517e3901589 upstream. [Why&How] On amdgpu_dm_connector_destroy(), the driver attempts to cancel pending HDMI HPD work without checking if the HDMI HPD is enabled. Added a check that it is enabled before clearing it. Fixes: 6a681cd90345 ("drm/amd/display: Add an hdmi_hpd_debounce_delay_ms module") Signed-off-by: Ivan Lipski Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

selftests/bpf: Test bpf_skb_check_mtu(BPF_MTU_CHK_SEGS) when transport_header is not set

2026-02-26T22:59:47+00:00

commit 6cc73f35406cae1f053e984e8de40e6dc9681446 upstream. Add a test to check that bpf_skb_check_mtu(BPF_MTU_CHK_SEGS) is rejected (-EINVAL) if skb->transport_header is not set. The test needs to lower the MTU of the loopback device. Thus, take this opportunity to run the test in a netns by adding "ns_" to the test name. The "serial_" prefix can then be removed. Signed-off-by: Martin KaFai Lau Link: https://lore.kernel.org/r/20251112232331.1566074-2-martin.lau@linux.dev Signed-off-by: Alexei Starovoitov Signed-off-by: Greg Kroah-Hartman

io_uring/rsrc: clean up buffer cloning arg validation

2026-02-26T22:59:47+00:00

commit b8201b50e403815f941d1c6581a27fdbfe7d0fd4 upstream. Get rid of some redundant checks and move the src arg validation to before the buffer table allocation, which simplifies error handling. Signed-off-by: Joanne Koong Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman